Agent 9 and his his robotic partner FiN are called in by the Super-Secret Spy Service to save the world from bumbling supervillain King Crab and his diabolical plans to melt the polar ice caps and build a massive water park.

Reluctantly teaming up with Squirrel for a cross-country race, Bird navigates the scorching desert heat and another team's dirty tricks while learning important lessons about endurance, sportsmanship, and teamwork.

"It's been a long, crazy trip around the world. Now the duo is back in their beloved forest, and Bird wants to throw a party! But Squirrel isn't in the mood to celebrate. His house needs a good cleaning, the river has been dammed up by a pesky beaver, and the forest animals are jittery about a growing menace. Will the dam dry out the forest? Will the mysterious new danger ruin the party? Will Bird finally convince Squirrel to let go and just have...

Bird and Squirrel have a new friend, Sakari, and also a new enemy, the Great Whale, who wants Bird as his next meal.