Season 1

01 Episode 1 Episode 13rd May 2018 There's a candy thief at large and Butt Detective's on the case with Brown as his backup. But the trail of the culprit leads right into a lake. 02 Episode 2 Episode 24th May 2018 Butt Detective goes to the station, where the officers are looking into who's behind a string of burglaries. But the chief has another job for them. 03 Episode 3 Episode 35th May 2018 After a Kaito the canine crook threatens to steal the Goddess Scarf from the museum, Butt Detective prepares to protect the precious booty. 04 Episode 4 Episode 414th July 2018 The Black Shadow thieves are in town and the police ask Butt Detective for assistance in putting an end to their mischief before any theft occurs. 05 Episode 5 Episode 521st July 2018 Butt Detective, Brown and Chief Maltese must get to the bottom of the Black Shadow Gang's burglaries. Later, they search for the leader's hideout. 06 Episode 6 Episode 628th July 2018 After someone leaves a strange box at the Lucky Cat, the police show up to help only to find they're behind Butt Detective, who's already on the case. 07 Episode 7 Episode 74th August 2018 A conversation at a feline cafe leads Butt Detective to reveal the backstory of how Brown became his assistant, going back to how he learned to talk. 08 Episode 8 Episode 825th August 2018 A potato-loving lady clad in purple knocks on Butt Detective's door and asks him to get to the bottom of a mysterious message from her ancestors. 09 Episode 9 Episode 91st December 2018 The purple potato case continues as Butt Detective, Brown and their purple companion head into the ancestors' hut. But it appears to be empty. 10 Episode 10 Episode 108th December 2018 While hearing about a forest cafe's missing manager, Butt Detective realizes he's been tailed by a persistent koala who may be after Brown's job. 11 Episode 11 Episode 111st December 2018 When the local barbershop owner complains of a spooky ghost scaring his customers, Butt Detective volunteers to get to the bottom of the mystery. 12 Episode 12 Episode 128th December 2018 Butt Detective is asked to protect the Oyagi family treasure from Kaito U, a master of disguise, but he seems to remain one step behind the thief. 13 Episode 13 Episode 1315th December 2018 Master burglar Kaito U's stolen the booty from right under Butt Detective's cheeks. But our perceptive hero is not far behind the thief. 14 Episode 14 Episode 145th January 2019 Butt Detective gets a mysterious letter from a faraway jungle, but it's missing a return address on its back. He and Brown head out for an adventure. 15 Episode 15 Episode 1512th January 2019 Butt Detective and Brown venture further into the dangerous ruins only to come face-to-face— or rather cheek-to-cheek—with a familiar figure. 16 Episode 16 Episode 1619th January 2019 Butt Detective is expecting to be interviewed by Cafe Guide magazine, but the odd interviewer who arrives doesn't quite pass the sniff test. 17 Episode 17 Episode 1726th January 2019 Just as Butt Detective is about to go to the police station to learn about a new crime-fighting tool, he receives an urgent call about a stolen item. 18 Episode 18 Episode 182nd February 2019 An international crime-fighting organization has discovered Kaito U's hiding place. Before they head in, Butt Detective is brought along as backup. 19 Episode 19 Episode 199th February 2019 Butt Detective and Brown resolve to get to the bottom of rumors about a giant thief. They soon deduce what appears to be its present location. 20 Episode 20 Episode 2016th February 2019 While the cops continue their investigation into the giant jewel thief, Butt Detective and Brown are hot on the heels (and cheeks) of the big bandit. 21 Episode 21 Episode 2123rd February 2019 Brown reports that while Butt Detective was out, someone stole his precious snack. The big-cheeked detective uses the case as a training opportunity. 22 Episode 22 Episode 222nd March 2019 Koala-chan asks Butt Detective for help dealing with ghosts seen near a park she likes. Brown insists he's not scared but doesn't seem to want to go. 23 Episode 23 Episode 239th March 2019 Butt Detective, Brown and Koala-chan are trapped behind a locked door in the supposedly-haunted mansion but he soon deduces an alternate egress. 24 Episode 24 Episode 2416th March 2019 After getting his cheeks shaved, Butt Detective accepts a job from the police to return a stolen item to its owner. But no one knows who it is. 25 Episode 25 Episode 2523rd March 2019 Butt Detective investigates a robbery at the Elvis Grizzly museum. The case darkens as the clues lead back to one of the police's own K-9 officers. 26 Episode 26 Episode 2630th March 2019 When a missing bag turns back up filled with cash, Butt Detective must reconstruct a series of unintentional exchanges before two lovebirds depart. 27 Episode 27 Episode 276th July 2019 A wealthy banker whose daughter has been kidnapped calls on Butt Detective. The criminal is demanding his famous Rainbow Diamond, but it's missing. 28 Episode 28 Episode 2813th July 2019 Butt Detective's search for the Rainbow Diamond is almost at an end. But some wall-writings indicate that actually picking it up might not be so easy. 29 Episode 29 Episode 2920th July 2019 Kaito U's back and he's threatening to steal a porcine spa's "greatest treasure." Butt Detective and the K-9s try to deduce what it could be. 30 Episode 30 Episode 3027th July 2019 Butt Detective and Brown head to a local festival, where a troublemaker who looks just like the double-cheeked detective has been making mischief. 31 Episode 31 Episode 313rd August 2019 Butt Detective uses the cards and coin that his doppelganger left behind to locate him. Meanwhile, Brown helps his new female friend find her ribbon. 32 Episode 32 Episode 3210th August 2019 A new investigator claims to be the best and challenges Butt Detective to a public detective match. But our hero senses something amiss. 33 Episode 33 Episode 3317th August 2019 There's trouble at the KNK bank and the police ask Butt Detective to take the job. But soon Carrot Horse butts in, complicating the situation. 34 Episode 34 Episode 3424th August 2019 Butt Detective receives another request from rich banker Kamenokoji. His daughter Midori is up to something odd and he wants the sleuth to tail her. 35 Episode 35 Episode 3531st August 2019 The K-9 cops and a gang of sparrow laborers ask Butt Detective to look into what's behind a series of spooky ghost-sightings at an old clock tower. 36 Episode 36 Episode 367th September 2019 After feline thieves nab a special cane, Butt Detective is on the case. He's joined by his double-cheeked dad, who has a history with the stolen item. 37 Episode 37 Episode 3714th September 2019 Brown and his koala pal star in a new detective movie. But behind the scenes, Butt Detective must solve a real case involving some thieving monkeys. 38 Episode 38 Episode 3821st September 2019 Butt Detective arrives at Castle Wolf to protect its booty from Kaito U. But he gets the impression there's something not quite right with his host. 39 Episode 39 Episode 3928th September 2019 Butt Detective arrives at the treasure only to see it stolen by Kaito U. But then a second Kaito U appears and each claims that the other is a phony. 40 Episode 40 Episode 404th April 2020 Butt Detective and Brown head to a ski slope to investigate rumors of a monstrous yeti, who is behind the resort’s sudden drop in customers. 41 Episode 41 Episode 4111th April 2020 Butt Detective's deductions finally lead him to the bottom of the yeti mystery. But he still needs to catch the culprits responsible for its creation. 42 Episode 42 Episode 4218th April 2020 Butt Detective's deductions finally lead him to the bottom of the yeti mystery. But he still needs to catch the culprits responsible for its creation. 43 Episode 43 Episode 4325th April 2020 Chief Maltese butts heads with his rival, Chief Chihuahua, at a restaurant. After something goes missing, they compete to see who can solve the case. 44 Episode 44 Episode 442nd May 2020 Butt Detective uses tricky tactics to give Brown a lesson in sleuthing. Later, the local kids surprise Brown by giving him a case of his own to solve. 45 Episode 45 Episode 459th May 2020 Butt Detective and Brown receive a mysterious visitor. Once they deduce his identity, he asks them to help stop Kaito U from stealing his treasure. 46 Episode 46 Episode 4616th May 2020 Butt Detective and the contestants face their next trial: a giant, menacing snake. Later, Kaito U finally shows himself and tries to steal the veil. 47 Episode 47 Episode 4723rd May 2020 Kaito U enters the infamously inescapable Orinona Prison and its straight-arrow warden vows to reform him. But Kaito U isn't about to change his ways. 48 Episode 48 Episode 4830th May 2020 Kaito U and his crow companion escape from their prison cell, but they're not out of danger yet. Their first stop is the guards' break room. 49 Episode 49 Episode 496th June 2020 While Butt Detective and the canine cops review a string of apple thefts, a journalist bursts in to report his camera was stolen by a spooky culprit. 50 Episode 50 Episode 5013th June 2020 After two painful cavities lead Brown and Koala-chan to meet at the dentist's office, a canine detective asks them to find his 11 missing puppies. 51 Episode 51 Episode 5120th June 2020 The canine cops reveal a new crime-fighting invention that they're very proud of. But it reminds Brown of the destruction caused by their last one. 52 Episode 52 Episode 5227th June 2020 Kaito U is going after the opera house's treasure, so Butt Detective and Brown pay a visit. One of the actors they see on stage is awfully familiar. 53 Episode 53 Episode 533rd April 2021 54 Episode 54 Episode 5410th April 2021 55 Episode 55 Episode 5517th April 2021 56 Episode 56 Episode 5624th April 2021 57 Episode 57 Episode 571st May 2021 58 Episode 58 Episode 588th May 2021 59 Episode 59 Episode 5915th May 2021 60 Episode 60 Episode 6022nd May 2021 61 Episode 61 Episode 6129th May 2021 62 Episode 62 Episode 625th June 2021 63 Episode 63 Episode 6312th June 2021 64 Episode 64 Episode 6419th June 2021 65 Episode 65 Episode 6526th June 2021 66 Episode 66 Episode 669th April 2022 67 Episode 67 Episode 6716th April 2022 68 Episode 68 Episode 6823rd April 2022 69 Episode 69 Episode 6930th April 2022 70 Episode 70 Episode 707th May 2022 71 Episode 71 Episode 7114th May 2022 72 Episode 72 Episode 7221st May 2022 73 Episode 73 Episode 7328th May 2022 74 Episode 74 Episode 744th June 2022 75 Episode 75 Episode 7511th June 2022 76 Episode 76 Episode 7618th June 2022 77 Episode 77 Episode 7725th June 2022 78 Episode 78 Episode 782nd July 2022 79 Episode 79 Episode 798th April 2023 80 Episode 80 Episode 8015th April 2023 81 Episode 81 Episode 8122nd April 2023 82 Episode 82 Episode 8229th April 2023 83 Episode 83 Episode 836th May 2023 84 Episode 84 Episode 8413th May 2023 85 Episode 85 Episode 8520th May 2023 86 Episode 86 Episode 8627th May 2023 87 Episode 87 Episode 876th April 2024 88 Episode 88 Episode 8813th April 2024 89 Episode 89 Episode 8920th April 2024 90 Episode 90 Episode 9027th April 2024 91 Episode 91 Episode 914th May 2024 92 Episode 92 Episode 9211th May 2024 93 Episode 93 Episode 9318th May 2024 94 Episode 94 Episode 9425th May 2024 95 Episode 95 Episode 951st June 2024 96 Episode 96 Episode 968th June 2024 97 Episode 97 Episode 9715th June 2024 98 Episode 98 Episode 9822nd June 2024 99 Episode 99 Episode 9929th June 2024 100 Episode 100 Episode 1006th July 2024 101 Episode 101 Episode 10113th July 2024 102 Episode 102 Episode 1025th October 2024 103 Episode 103 Episode 10312th October 2024 104 Episode 104 Episode 10419th October 2024 105 Episode 105 Episode 10526th October 2024 106 Episode 106 Episode 1062nd November 2024 107 Episode 107 Episode 1079th November 2024 108 Episode 108 Episode 10816th November 2024 109 Episode 109 Episode 1095th April 2025 110 Episode 110 Episode 11012th April 2025 111 Episode 111 Episode 11119th April 2025 112 Episode 112 Episode 11226th April 2025 113 Episode 113 Episode 1133rd May 2025 114 Episode 114 Episode 11410th May 2025 115 Episode 115 Episode 11517th May 2025 116 Episode 116 Episode 11624th May 2025 117 Episode 117 Episode 1174th October 2025 118 Episode 118 Episode 11811th October 2025 119 Episode 119 Episode 11918th October 2025 120 Episode 120 Episode 12025th October 2025 121 Episode 121 Episode 1211st November 2025 122 Episode 122 Episode 1228th November 2025 123 Episode 123 Episode 12315th November 2025