The bombing of a bar, intended to kill a reporter, leads Tom and Sloan to Tom's old mentor, a cold and ruthless man who trains the new species for violent missions.

Attwood's superior launches a plan to get to Lewis, using Lisa as bait-but ends up putting Sloan and Tom in a perilous situation. Meanwhile, Ed makes a startling discovery about Kelly.

As Tom and Sloan are pursued by the police, Lewis finds a way to summon Tom back to him-and reprograms him as a killer. Meanwhile, at Kelly's viewing, Ed sees movement in the corpse.