Wicked Science (2004)

S2E6 The Great Dork

Feeling down about himself, Russ believes he’s a total loser. To boost his confidence, Toby constructs a time machine, hoping Russ can witness the bravery of his heroic ancestors. However, their plan backfires, leading to Russ being swapped in time with a caveman. Now, Toby must figure out how to rescue Russ from this unexpected predicament and restore the timeline. Will he succeed in bringing his friend back to the present?