Father Mulcahy is distraught after being passed over for promotion, while a mysterious joker is plotting against Hawkeye, B.J. and Margaret.
Jack feels guilty about not standing up to a tough guy who makes a play for Chrissy.
A jewel thief named Murdoch betrays his two partners and escapes with a bag of rubies. His double-crossed sidekick, Dinsmore, attaches a belt of explosives to Sabrina and demands the Angels help.