When Steve is selected to sing the national anthem at the Langley Falls Veterans' Day celebration, he gets some heat from Stan who doesn't think he's ready for such an undertaking. Unimpressed with Steve's vocal talents, Stan decides Steve needs to experience real war in order to sing about our country's military prowess. But things quickly go south when Roger gets involved and Steve goes bananas.
With the help of an out-of-this-world remote control, Stewie and Brian travel through alternate universes, including a post-apocalyptic world and a parallel world run by dogs where humans are pets.
Homer gets the lead in a movie about a superhero who can take on the powers of every superhero in any comic book he touches. To whip Homer into superhero shape, the studio hires a celebrity fitness trainer.