Belker takes an unexpected bus ride to Springfield; Sid turns Louis Russ over to Buntz, which begins the unravelling of Keenan and Garibaldi's deaths; Jablonski tries to deal with an incompetent khaki officer; and Hunter makes a canine investment.

Belker goes to the dogs working undercover at the pound; Furillo chases down the reason he's been denied mortgage insurance; LaRue and Washington bust a former baseball star for drunken driving; and Buntz is held hostage by a vicious parolee.