The semifinals have arrived as the remaining four teams compete for three spots in the finals of “Pooch Perfect” The Immunity Puppertunity heats up with A Dog For All Seasons challenge, where each team must design their pooch based on a season. Later, in the Game of Bones Ultimutt Challenge, groomers pull out all the stops for the last chance to impress the judges with mythological creature-themed grooms. Plus, Rebel Wilson assists in an romantic surprise for one team.