Season 4

01 A Change of Heart (1) Episode 16th October 1991 A wave of violence has broken out within the city, sending Superboy into tension-filled investigation. Little does he know he will soon be accused of murder. 02 A Change of Heart (2) Episode 213th October 1991 Lana's life is in peril as Adam blackmails Tommy into creating a weapon to kill Superboy. 03 The Kryptonite Kid Episode 320th October 1991 Kryptonite infects a young scientist during a lab explosion, causing him to use his newfound powers against Superboy. 04 The Basement Episode 427th October 1991 Lana discovers an alien in her basement who steals her identity. 05 Darla Goes Ballistic Episode 53rd November 1991 A strange formula gives Darla erratic powers, causing her to attack Superboy. 06 Paranoia Episode 610th November 1991 Paranoia strangles Capital City as residents become fearful of a race of invisible aliens who have just landed. 07 Know Thine Enemy (1) Episode 717th November 1991 Lex Luthor has a plan to destroy the world's population with a series of dirty bombs, but first he must get rid of Superboy. 08 Know Thine Enemy (2) Episode 824th November 1991 Superboy is trapped inside Lex Luthor's virtual reality computer program, and now Lana must enter the program to save Superboy before it's too late. 09 Hell Breaks Loose Episode 91st December 1991 A troublesome ghost is haunting the Bureau, wreaking havoc on the office and its employees. To stop him Superboy and Lana must discover the secret as to how the ghost was killed in the building fifty years earlier. 10 Into the Mystery Episode 108th December 1991 Trying to protect his Aunt Cassandra, Superboy confronts a force which he cannot win against when death takes a human form. 11 To Be Human (1) Episode 1119th January 1992 While trying to help Bizarro with his depression, Superboy's powers are weakened, leaving him vulnerable to the evil villain Chaos, who plans to destroy him once and for all. 12 To Be Human (2) Episode 1226th January 1992 Bizarro grapples with the choice to be human or resort back to his original self in order to save Superboy from Chaos's destructive plans. 13 West of Alpha Centauri Episode 132nd February 1992 Superboy is kidnapped by an alien force and taken to a paradise planet near Alpha Centauri. Will he ever return? 14 Threesome (1) Episode 149th February 1992 A prison psychiatrist helps Lex Luthor and Metallo escape, all three quickly turning their attention to stopping Superboy once and for all. 15 Threesome (2) Episode 1516th February 1992 Superboy continues to battle the newly formed threesome of Lex Luthor, Metallo and Dr. Odessa Vexman. As their destructive potential continues to rise, Superboy must stop them before it's too late. 16 Out of Luck Episode 1623rd February 1992 Superboy continues to battle evil in "Out Of Luck." 17 Who is Superboy? Episode 171st March 1992 Superboy's secret identity is challenged in "Who Is Superboy?" 18 Cat and Mouse Episode 1819th April 1992 Superboy gets entangled in a dangerous game of "Cat And Mouse." 19 Obituary for a Super Hero Episode 1926th April 1992 Lex Luthor has just hit Superboy with a deadly kryptonite bomb. Now he gloriously recounts in detail how he planned and executed the devious plan, which he feels certain has killed Superboy. 20 Metamorphosis Episode 203rd May 1992 A gym owner is using the blood of his younger customers, along with a gold derivative, to keep himself young. This results in an acceleration in the victims' aging process. 21 Rites of Passage (1) Episode 2110th May 1992 Superboy looses his powers and now an investigation begins to discover the curious force that caused it. 22 Rites of Passage (2) Episode 2217th May 1992 Superboy is on the verge of losing his powers forever, which causes his alter ego of Clark Kent to search for the elusive crystal which holds the key to his past and will ultimately lead him through his "Rites Of Passage."