This is the first time Drake and Josh are sent in upstairs by being grounded.

Drake's mom can be heard in the opening sequence.

When Drake comes to get Josh to get him to help fix the dune buggy, he is listening to the Tony Pajamas sketch from The Amanda Show, which Drake Bell and Josh Peck starred in.

Nancy Sullivan as Audrey Parker-Nichols.

Josh is dismayed that despite everything Drake still has it easy. However, due to Drake's injury, his 'grounding' is simply staying home from school, resting, and making Josh be his servant. Racked with guilt, Drake confesses to Walter and Audrey, even revealing he destroyed the tv and talked Josh into lying about it and they ground Drake for two weeks, much to Josh's delight. Josh finds out when he gets a call from the emergency room and confronts Drake about it, angry that all Drake cares about is keeping the accident and his injuries a secret from their parents. Drake then must conceal his injuries and the damages to the dune buggy.

Drake secretly drives it with Trevor anyway and crashes. Drake and Josh then fully repair the dune buggy, to the surprise of their parents, who forbid them from driving it. Later, Drake convinces Josh to try out lying after Josh accidentally breaks the TV, but Josh is grounded for doing so. Drake and Josh are excited to receive a dune buggy from his friend Trevor, only to find it is broken down.

Dune wiki