The Secret Life of Pets 2, 2019
Sometime after the events of the first film, Max and Duke's owner, Katie, gets married to a man named Chuck and have a son, Liam, whom Max disapproves of at first due to his rough play but eventually softens up to him. Later, Max's overprotective feelings for Liam develop into an itch which prompts Katie to get him a dog cone from the veterinarian in an effort to lower his symptoms. Max's luck changes when Duke reveals that the family is going on a road trip outside of the city.