|Theodore's Ocean Adventure|
Theodore's Ocean Adventure is the third episode of the fourth season.
Theodore isn't sure he is ready to go out on the ocean, but when his friend Rebecca, the Research Vessel doesn't return to the Harbour on time, he knows he has to venture out. He uses a recent lesson on currents to find her and then cleverly saves her from an iceberg by using chunks of ice to make himself heavier. As they head home, Theodore realizes that he knows more than he thought he did. He smiles as he uses the stars to navigate, just the way Rebecca had showed him before.