When Jill has no choice but to put a shock collar on Chief, he assumes the "zaps" must be direct messages from god and dedicates himself to spreading the gospel. Nibbles attempts to befriend Tabitha by sucking her into a "Strangers on a Train" murder pact, and Max lands a role that was meant for his new owner, David Spade.
It's Boomsday again, and Honey and Chief are sedated by Jill in order to calm their nerves from the booms (AKA fireworks). Chief dreams that he is a suit-wearing crusader in Washington D.C. on a mission to put an end to Big Boom once and for all. Honey dreams that she is a bipedal poodle going on a road trip, leaving destruction in her wake.
A wildfire forces our animals to stay at an elementary school evacuation center and Honey must make amends with Chico for abandoning the group during the fire. Meanwhile, Chico becomes a high school bully in an attempt to hide the pain of his own abandonment issues; Shel falls for a seductive sea turtle; and The Gray One stands by his human, who refuses to leave as the fire threatens their home.
After Honey loses a clutch of baby possums she was supposed to be caring for, she and The Gray One set out on a nocturnal adventure to find them. Meanwhile, Shel and Nibbles team up ’70s cop show-style to apprehend the nocturnal critter who’s been pooping on Shel’s shell at night. Diablo gets abducted by an owl with a special talent.
When Jill does ayahuasca and is able to communicate with animals, Honey tries to connect with her on a deeper level. Chief is shocked to learn that Jill isn't his biological mother, and the three of them set off on an adventure to find his real mom. One of the other women on ayahuasca thinks The Gray One is her late husband reincarnated.
When Honey attempts to cure Diablo's irrational fear of basement monsters, she puts the whole group in jeopardy. Chico and The Gray One follow Kevin onto a plane to get to the bottom of why Kevin always abandons Chico. Chief faces off against the loud barking dog in the sky, more commonly known as thunder.