Shaun the Sheep (2007)

S2E22 What's Up, Dog?

A wayward balloonist makes an unexpected landing in a field of sheep, catching the attention of Shaun and his friends. Their curiosity leads them to climb aboard the hot air balloon, and before they know it, they find themselves soaring through the sky. Meanwhile, Bitzer is frantically trying to keep up, growing increasingly anxious as he works tirelessly to ensure the wayward sheep descend safely back to the ground.