When Tori suggests his staying can lead to more sex, Brian decides to keep up the charade. While at the park with Lois, Stewie spots him with Vic who is walking him on a leash where he brags about his sexual arrangement with Tori, the wife. However, things aren't so great when he has to listen to them have sex and when he tries to leave, he finds himself put on guard dog duty and chained in the yard for the person cheating with Tori. But when he complains to Tori, she leaves him behind as she splits town. Stewie tracks him down and finds out he is in trouble, so he gets help from Chris and Vice President Joe Biden to get Brian back by convincing Vic that it would be patriotic.