Knight Industries gives Mike his next mission, and he finds himself going undercover in Las Vegas to bust and stop a group from their money laundering operation.

Since Mike needed some backup, and no one else was available, he is forced to take along a reluctant Billy. Billy comes along on this mission and finds himself sparking a romantic adventure of his own, which causes him to get sidelined in his own operation. Meanwhile, Dr. Graiman has his own problems when an ex lover comes to headquarters and turns the heat up, to assess how environmentally friendly the operation is.