Zena comes to the garage and announces she's getting married and asks the gang to let Louie know that she wants to speak with him. After telling Louie, he becomes convinced that she wants to get back together, and he meets her for dinner. Louie is crushed when she tells him she's getting married and wants him to attend, and he reacts very insultingly toward her. The rest of the gang goes to the wedding when Louie refuses, but afterwards he regrets not going and wishing her well, so he crashes his way on to their cruise ship (about to leave on their honeymoon). Zena and her husband are not happy to see Louie and before he can wish them well, Louie has a change of heart and starts choking the husband. After composing himself, however, he wishes them well, and Zena seems touched.

Alex takes ownership of his old dog, Buddy, who has been living at his sister's place in the country. Buddy is now 19 and Alex wants to spend as much time with him as possible. The dog is lovable but at his advanced age, requires constant care, and Alex soon is taking Buddy with him everywhere including the cab. The gang soon sees that Buddy is not doing very well and gently suggest that Alex consider putting him to sleep, but Alex refuses. Jim suggests that Alex get Buddy to do his old trick (playing dead) to determine his wellness. Buddy does the trick successfully, although gives the gang a scare when he doesn't get up right away and they really think he may be dead (thankfully, he turns out to be okay). However, the next time the gang sees Alex, he doesn't have Buddy with him, and Alex says that he had to take Buddy to the vet where he died. Louie ushers everyone out of the garage so Alex can grieve alone. With everyone gone, the stoic Alex cries as the episode ends.

Elaine and her beau share butterflies over his meeting her children.

News of his girlfriend's pregnancy floors Tony on the eve of his fight with a contender.