Frankie Jr. is brought in to help with a murder case involving a youth hockey league; Cailin asks to stay with Maura; Maura has trouble living with a teenager.
Instead of being shunned like expected, Eileen finds the ladies of her book club way too eager to open up to her about their own problems; Pat accompanies Kenny to a gay dodgeball match.
Sid and Freya find out Freya is pregnant and Morris throws them a baby shower; Tai has to pet-sit Scraps while going back in time to terminate the future leader of the human resistance.