Barnett comes into Vincent Keller's cell with his partner, Agent Thomas, saying they're running some tests on orders from Agent Knox. Vincent agrees to come, but later finds out they weren't sent by Knox. Furious, Vincent transforms and reveals himself as a beast to Thomas & Barnett. They let him go, though, when he offers to kill Gabriel Lowan for them, who is trying to expose Vincent as a beast. Vincent later finds out Barnett & Thomas exonerated him, meaning they're legitimate government agents.