Season 2

01 Wake Up Call (1) Episode 15th June 2005 Tom and Diana investigate a mysterious structure being built at a psychiatric hospital, based on the drawings of one of their patients who's a 4400. 02 Wake Up Call (2) Episode 25th June 2005 Richard must protect his family when he and Lily are discovered to be 4400s. 03 Voices Carry Episode 312th June 2005 A returnee exhibiting telepathic abilities seeks help from NTAC, but is instead used as a mole to infiltrate Jordan Collier's 4400 Center. 04 Weight of the World Episode 419th June 2005 Tom and Diana investigate a 4400 whose ability to increase the human bodies' metabolism just may be this weight-conscious world's answer to the ultimate fat-burner. 05 Suffer the Children Episode 526th June 2005 Tom and Diana investigate a 4400 junior high school teacher accused of child abuse. 06 As Fate Would Have It Episode 610th July 2005 A morbid premonition from Maia threatens the future of the 4400 Center. 07 Life Interrupted Episode 717th July 2005 Tom finds himself in a world where the 4400 never happened. 08 Carrier Episode 824th July 2005 After living for 8 years in an alternate world that only Tom and Alana remember the world with the 4400 has returned as it was at the second the 8 years started. A 30 year old 4400 woman wakes up and finds everybody else in her local community dead. Maia puts April's love for her to a test. 09 Rebirth Episode 931st July 2005 A 4400 with the ability to repair damaged chromosomes hides a shocking past. And while Richard seeks out a tormentor among his Korean War buddies, Shawn reconnects with his family and tries to help Kyle. 10 Hidden Episode 107th August 2005 NTAC is keen to find Jordan Collier's killer as Tom is desperate to find Kyle. 11 Lockdown Episode 1114th August 2005 A 4400 terrorist releases a signal at NTAC that makes the men violent, forcing a lockdown of the facility. Lilly questions how the Centre is handling her daughter, and Shawn tries to recruit a familiar face. 12 The Fifth Page Episode 1221st August 2005 When 4400s around the world come down with life-threatening illnesses, Ryland comes back to NTAC and orders the sick - and even unaffected 4400s - to be quarantined. Tom and Diana race to find a cure and discover a shocking secret in the process. 13 Mommy's Bosses Episode 1328th August 2005 Discovering that NTAC is behind the disease plaguing the 4400s, Tom and Diana try to get to the bottom of NTAC's cover-up, while Kyle considers turning himself in.