Who's Afraid of Boomsday?.On the 4th of July, which the dogs mistake for "Boomsday" and have a fear of, Honey and Chief are taken to the beach; Honey becomes friends with a traveling dog who resembles the late Big Cookie, while Chief gets lost and is worshipped by a cult of sea lions. Meanwhile, Elsa begins to question her abilities as a service dog when her vest is outed as a fake, and the cats fight off a gang of seagulls in order to access a dumpster behind a seafood restaurant.