 2 safe-crackers realize too late that the lookout on their jewel store burglary is no longer looking out, he s absconded with the most valuable jewels. The double-crosser bursts into Mother s nightclub, interrupting Mother s Louis Armstrong-style rendition of "Bill Bailey Won t You Please Come Home," to beg Peter Gunn to protect a mysterious 4th conspirator, Timothy, so he and Timothy can catch a train out of town the next morning. Before Gunn can meet Timothy, the double-crosser flees. The 4th conspirator, waiting in the alley, is a trained seal, on a leash. Lt. Jacobi seals off the train station because the whole situation smells fishy.