When Dr. Alec Holland becomes the victim of deadly sabotage and is left for dead, he is transformed by the swamp and the chemicals meant to kill him into a creature struggling with the balance between his own vengeance and the protection of those who can't protect themselves.
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.
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.
When an elderly woman, named Irma Swanson, who knew and befriended Swamp Thing, dies, her estranged daughter, Cathy, comes to town for her funeral. Swamp Thing and the spirit of Irma then show Cathy the past of Irma’s troubled life in order for Cathy to make amends meet.
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.
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.
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.
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.
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.
Archane buys a rare book of voodoo spells and while summoning Baron Samedi he is possessed by evil spirits. The book is actually a trap for Archane by the daughter of the Ogun Duchamp who seeks revenge for Jim Kipp. On Archane's side is Duchamp's son who has taken his father's place.
A scientist from Alec Holland's past is employed by a businessman who claims he wants to build a recycling plant near the swamp. His real motives are to build a resort in collaboration with Archane.
A young loner who believes he is a vampire is accused of murdering his mother's boyfriend.
After seemingly having no interest for so many episodes what happened to Jim, Tressa is suddenly in Peru and sidetracked by a voice from her past on a radio.
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.
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”.
Archane has created a poison engineered to specifically target Swamp Thing's genetic code. Ann has discovered a method of temporarily changing Alec back to human form.
Swamp Thing is wounded and being tracked down by mercenaries hired by Arcane. He makes his way to Dr. Ann Fisk's lab and is transformed back into Alec Holland. Afterward he is still wounded and aided by Tressa Kipp who finally learns the truth about Swamp Thing.
Arcane finally resurrects his dead wife only to discover he's been duped by Sunderland. The body he's been lording over really belongs to a stripper named Kitty. Which sends Arcane on a rampage of revenge, that turns bitter sweet when he finds his true wife.
A cold paralyzing cloud of mist from the swamp attacks the town. In the face of this threat, Abigail makes the ultimate sacrifice to save a little boy.
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.
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.
Return to those thrilling days of the old west in guilt ridden dreams, when Arcane is allowed to hunt a man with the full knowledge of the sheriff.
After being electrocuted while at the controls of his latest scientific experiment, Arcane has a near-death experience where he is put on trial and gets judged for all his past misdeeds with Tressa as the judge and Will as his lawyer and both the prosecutor.
Ian James is an unscrupulous anthropologist who releases poisonous tree frogs in the swamp to further promote his documentary film of the swamp while he charms his way into Tressa’s life while Will is as always suspicious to James’ true nature especially when James plans to catch on film the so-called Swamp Thing to further advance his career.
Will is taken hostage by two men whom are greedy explorers whom force him to help them find the location of a mystic Mayan temple in the swamp housing buried treasure which is guarded by two vengeful Mayan ghosts.
Episode Ninja is a small business run by one person.
Pro memberships help fund servers and new feature development!