Directed by John Behring
Written by Robert David Port & Ken Sanzel
Don and Charlie are specifically asked for by a bomber (Martin Jarvis), they are put on the trail of espionage and it leads to a devastating betrayal.
Tropes for this episode:
- The Bus Came Back: Megan (Diane Farr) returns in this episode.
- Double Reverse Quadruple Agent: Ashby was this in his intelligence days. By the time he was discharged by MI-6, "nobody knew which side he was playing for".
- Thanatos Gambit: Ashby. He finds out he's dying, so he wires a bridge with bombs and creates an incredibly intricate and complicated puzzle to get Charlie's interest and to lead him to the eponymous Janus List (a list of double-agents), ending with him blowing himself up as a final clue.
- Wham Episode: Colby is revealed to be a double agent for China.
