

Sonic is pestered by Mark the Tapir, who weasels his way into a position as Sonic's assistant. Eventually, Mark crosses the line and captures Sonic and his friends.
Sonic lets martial arts action movie star Tommy Thunder follow him around and observe his "hero process" for Tommy's upcoming role. However, things erupt when Tommy's over-the-top ego clashes with Sonic's and he starts to claim credit for the gang's victories.
Eggman discovers that an asteroid is on a collision course with the planet! It's up to Sonic and his friends to destroy the asteroid.