When the ship mysteriously veers off course, suggestions of sabotage abound, fueling the onboard paranoia. A perilous spacewalk is required to bring the ship’s systems back online.
Nolan and Amanda are captured while excavating a buried weapons cache; Berlin investigates a Votanis Collective bombing in the heart of Defiance and sees an opportunity to get revenge on Irisa; Stahma's clandestine relationship with the mysterious Omec leader T'evgin takes a turn.
K.C. goes undercover as a college student at The University of Maryland to befriend and protect the President of The Organization's daughter, Eliza. Meanwhile, Judy tries to talk Ernie into letting her join his Adventure Scout troupe.
A hostage exchange with a vengeful warlord turns deadly when the Killjoys find themselves stranded in ‘Sugar Point’ – a restricted, bombed-out city on Westerley overrun with dangerous gangs and scavengers.