The story is set roughly 8-9 years after "What About Mimi" with Grim Jr., Minniemandy and Mimi are now young adults and Mandy has given birth to the twin son and daughter of Dan Phantom Daniela Phantom and Manny Phantom. The next day Junior returned to Castle Evergrim for the first time in 3 years for Minnie's 20th birthday. He interrupts his twin siblings Manny and Dani in yet another of their infamous fights, which Daniela seem to be winning despite the fact that she's not really fighting back. During the fight Manny lands a hit that sends his sister flying into their older brother.