Ace, à toute vitesse !

When Ace gets fitted with braces, a mix up at the dentist catapults into a world of super villains; Ace transforms a monkey into a giant beast when wildlife expert Safari Bob gives a presentation.

Ace uses his braces cohesive manipulation ray to bring a T. rex skeleton back to life; Ace accidentally loses his braces, only to have them wind up on his dog, Lunchbox.

Ace uses his braces to cheat in a skateboard competition but finds he's headed straight into a trap; Ace babysits his grandpa, who rescues Ace from Ned and Hilda's clutches.

Dougal plans to perform his embarrassing chicken act at Ace’s school’s benefit concert, and Ace must find a way to keep his Dad off stage or face certain social humiliation. When Ace ignores Hugo’s advice and agrees to be sawn in half as part of Tina’s magic act, he learns that sometimes...just sometimes Hugo is right!

Ace takes Tina on a hot air balloon ride, but Ned and Hilda attack; during work experience week, Ace gets stuck working at the garbage dump.

Hugo's boredom reaches an all-time high and the braces self-destruct sequence is activated; Ned and Hilda kidnap Ace's grandpa, Ace must team up with his grandpa's roommate to save the day.