Granddad, Huey, Riley and Jazmine must avoid guards after they sneak in to a theatre to watch Soul Plane 2: The Blackjacking.

The infamous rapper Thugnificent moves to the neighbourhood with his friends Macktastic and Flonominal, eventually leading to Granddad becoming annoyed with his new neighbours. Their feud inspires Thugnificent to create a diss-track called "Eff Granddad".

Riley joins Thugnificent's Lethal Injection crew. Meanwhile, a local bully steals Riley's prized chain.

Granddad worries about Riley's sexuality when he notices that he begins to dress and act like "in-the-closet" rapper, Gangstalicious.