第 1 季 共 22 集
播出时间：1990年7月28日
第 1 集 The Emerald Heart
播出时间：1990年7月28日
The main series characters are introduced. Swamp Thing first meets 11-year-old Jim Kipp whose divorced mother, Tressa, is visiting her mother’s home. Jim encounters Humphrey, a dwarf who has escaped from the evil Dr. Arcane. Tressa struggles with raising her son as well as finding her magic powered necklace, called “the emerald heart” in the swamps.
第 2 集 The Living Image
播出时间：1990年9月8日
Dr. Arcane transforms his partner in crime into the "living image" of Swamp Thing's lost spouse in hopes of tricking him into revealing the formula for the bio-restorative recipe, which is intended to modify the DNA and stop aging.
第 3 集 The Death of Dr. Arcane
播出时间：1990年9月15日
Thugs working for Arcane kidnap Jim. Arcane takes one of his 'creations' into the swamp and is met by Swamp Thing who objects. The creature escapes and Arcane is killed, but must be “revitalized” in order for Swamp Thing to save Jim.
第 4 集 The Legend of the Swamp Maiden
播出时间：1990年9月22日
Jim and Oboe sneak out on a midnight visit to the swamp and are resolute to see a mystical spirit called the Swamp Maiden who appears only once every three years. Jim plans to take pictures of her although both have been warned not to touch her. An unknown man offers to buy the pictures that Jim might take.
第 5 集 Spirit of the Swamp
播出时间：1990年9月29日
Veteran actor Roscoe Lee Browne plays a ""Ogun"" which is a voodoo priest whom Archane employs to overcome Swamp Thing.
第 6 集 Blood Wind
播出时间：1990年10月6日
Arcane's protégé, named Crown Prince, is experimenting with hatred pheromones and his latest batch is released into the swamp air and Tressa is infected with the chemical agent which leads to all townspeople that she comes into contact with wanting to kill her. Only an intervention from Swamp Thing as well as Jim can cure her.
第 7 集 Grotesquery
播出时间：1990年10月13日
Swamp Thing is overcome by toxic waste and falls unconscious where he is found by two clean up men and is sold to a carnival freak show ran by a cruel man in league with Arcane. Jim stumbles by and sees the weakened Swamp Thing in a cage, and he is its only hope to get him back to the swamp to recover.
第 8 集 Natural Enemy
播出时间：1990年10月20日
Swamp Thing is teaching Jim about endangered planets in the swamp when they come upon an area Swamp Thing refused to explain or let Jim go into that looks intriguing to a young boy's fancy. Jim being the inquisitive bash young boy he is, can't resist returning to have a look. During his brief visit he is bitten by a venomous insect created by Archane.
第 9 集 Treasure
播出时间：1990年10月27日
A thief on the run from his female accommplice choses the swamp as his hiding place for a fortune in stolen cash and Jim's house as his final stop.
第 10 集 New Acquaintance
播出时间：1990年11月3日
Jim is feeling lonely and tries to make a new friend when he meets a mysterious young girl in town, named Lily, who invites herself into Jim and Tressa‘s home, and who carries a dark secret.
第 11 集 Falco
播出时间：1990年11月10日
One of Archane's failed experiments, a man-bird, comes looking for vengeance during the funeral for Jim's grandmother and only Swamp Thing as well as an encounter with danger involving Jim can redeem “Falcon Man”.
第 12 集 From Beyond the Grave
播出时间：1990年11月17日
Jim and Tressa may have to leave the swamp after a lawyer delivers a notice of eviction. But they are unaware that the lawyer is in league with Dr. Arcane whom plans to use the property to expand his lab. Only through dreams does the late Tressa’s mother communicates to her with clues to find her real will guarded in the swamp.
第 13 集 The Shipment
播出时间：1990年11月24日
Arcane captures Jim and sells him into slavery after the boy is witness to the evil doctor's hideous transformations of men into monsters and the local sheriff is in on the plans. Jim’s 17-year-old half-brother, Will, arrives to investigate Jim’s disappearance and teams up with Swamp Thing to find Arcane’s secret lab, but neither are aware that Jim is already gone from the country and the sheriff is one step head of their moves.
第 14 集 Birth Marks
播出时间：1991年2月2日
A runaway synthetic human from Dr. Woodroes lab, Abigail is seen running through the street from an exploding boat by Will who befriends her. Meanwhile a baby is swept away by the waters of the swamp from the same explosion into the arms of the Swamp Thing.
第 15 集 Dark Side of the Mirror
播出时间：1991年2月9日
Swamp Thing is framed by one of Arcane's mutants for murdering a local District Attorney who was on to Arcane for his latest nefarious plans. Meanwhile, Abigail continues to try to weave herself into Will’s life as well as persuade him to expand his boundary of knowledge.
第 16 集 Silent Screams
播出时间：1991年2月16日
When Tressa accompanies her old college roommate, Ilene, and her daughter on an overnight camping trip, Arcane traps Ilene and her daughter behind an invisible force shield and only Swamp Thing can rescue them when Tress is disabled by a snake bite and both Will and Abigail are powerless to do anything.
第 17 集 Walk a Mile in My Shoots
播出时间：1991年2月23日
Arcane trades bodies with Swamp Thing after setting a trap using Will as bait. While Swamp Thing deals with being human for the first time in years and interacting with an unknowing Will, Tressa, and Abigail, he must find a way to switch back within 24 hours or the change will become permanent.
第 18 集 The Watchers
播出时间：1991年3月2日
Tressa accidentally stumbles across Arcane's latest model of two robot henchmen, called Watchers, who are hunting down Abigail to erase any evidence of the late Dr. Woodroe’s test tube experiments. Meanwhile, Will decides to throw Abigail a birthday party when she does not remember her birthday since she never had biological parents.
第 19 集 The Hunt
播出时间：1991年3月9日
Will's estranged father shows up looking for a rare white orchid that Arcane and his henchman, Graham, has nefarious plans for. Tressa struggles with her romantic feelings for him, and Abigail, working in the town’s greenhouse, succumbs to the poisonous fumes of a certain red orchid, and only the healing powers of the white orchid can save her.
第 20 集 Touch of Death
播出时间：1991年3月16日
Arcane experiments with Dr. Holland's formula by murdering a local man who comes back from the dead with severe side effects; a single touch can drain a person‘s life energy in which Will becomes infected and pushes away Abigail. Only Swamp Thing can come to anyone‘s rescue.
第 21 集 Tremors of the Heart
播出时间：1991年3月23日
Under pressure from his superior, the shadowy General Sunderland, Arcane experiments with artificial earthquakes when he hires a hot female engineer, named Sienna, to create earthquakes at this latest weapon which leads to a personal conflict between Arcane and Sienna over the test runs, and it also lands Swamp Thing in a bind when he becomes trapped in the underground facility and weakening fast from lack of sunlight. Elsewhere, after Will goes out of town with Dr. Hollister to shop for a new truck, Abigail finds herself helpless when Tressa becomes pinned under the fishing pier during another aftershock and the rising river water threatens to drown her.
第 22 集 The Prometheus Parabola
播出时间：1991年4月6日
Tressa and Abigail are taken hostage by a man with a score to settle with Arcane, and whom has developed an environment destroying weapon called the Prometheus Parabola, capable of destroying the swamp and Swamp Thing intervenes in the literal shoot-out war at Tressa’s house to see that both sides do not activate the weapon while Will tries to rescue Tressa, Abigail, and Dr. Hollister from harms way.
