Abby Arcane returns home to Marais, Louisiana to investigate a deadly swamp-borne virus, only to discover the dark, terrifying mysteries of the swamp.
Crystal Reed, Virginia Madsen, Andy Bean, Derek Mears
Still reeling with the revelation of the truth behind his existence, Swamp Thing fights back against the team hunting him to protect his world.
While Abby and Liz track down the secret Conclave facility, Jason Woodrue conducts experiments on Swamp Thing and makes an incredible discovery.
After a harrowing journey of survival through the swamp, Avery comes face to face with Swamp Thing, who rescues the injured man and helps his recovery.
Abby sees Swamp Thing for who he is, and he shows her the Rot. Maria entertains a guest from the Conclave, and Lucilia tells Avery that they have business in the swamp.
While Swamp Thing finds a new way to communicate with Abby, Matt learns the truth about Alec Holland and Avery pressures Woodrue to deliver results.
While Swamp Thing struggles to come to terms with his transformation with the help of a Phantom Stranger, Jason Woodrue shares a revelation with Avery Sunderland.
While Swamp Thing senses a growing darkness within the swamp, Abby's return dredges up her dark history with the Sunderlands. We learn more about the mysterious Dan Cassidy.
After witnessing the explosion that seemingly killed Alec and the swamp creature, Abby approaches Avery in an attempt to get at Alec's files. Susie is drawn to the swamp where she meets the newly created Swamp Thing, and one of Avery's men stalks her.
CDC doctor Abby Arcane is called in to investigate an outbreak in her Louisiana home town, and meets researcher Alec Holland.