Twenty years ago, Billy And Mandy were inseparable friends, even if Mandy did abuse Billy a bit, along with Grim. Sure their relationship was a tad rocky, but they still found ways to put it aside for the cause, and occasionally saving the world from devastation. Now Billy has become an actor who has quickly rose to fame, so much so that he strikes a deal with EAI Studios in making a film starring him. Along the way, Billy meets back up with Mandy for the first time in years, who is now a forensic scientist working with the LA Police Force, and with Grim, who now runs a one-man yard care service. While making the film, Billy realizes that the CEO of EAI is very shady, so he calls up Mandy to help crack the case and the bring Grim back with them to help, as well as Hoss Delgado to find out what the heck is going on.
