The 2nd Dimension is a alternative universe where Danville of this dimension were ruled by Heinz Doofenshmirtz-2, a group known as the Resistance were founded and led by Candace Flynn-2. The 1st Dimension people (Phineas-1, Ferb-1, Perry-1, Heinz Doofenshmirtz-1, and Candace-1) came and visit the 2nd Dimension, but they were determined to help the Resistance defeat Heinz Doofenshmirtz-2 and his robot army of Normbots and save the 2nd Dimension. And now Heinz Doofenshmirtz-2 were defeated and everyone in Danville of the 2nd Dimension decided to enjoy their freedom