Hank scorpio realizes how much phineas and Isabella care about rachel and Abigail Elizabeth flynn and decides to come up with a plan to abduct them to force phineas and Isabella to join his invasion. So he goes right to Springfield with his evil army to launch his plan. However phineas Isabella and lisa came up with a defense plan of their own while leaving only marge, Abigail and rachel behind at the house. Phineas says 'let's go over the plan again : Lisa and Isabella you two will use the old creations of mine I gave you to handle the army of guards. Meanwhile bart and I will use my beak mk2 suit to go after scorpio himself. Any questions?' so after lisa and bart take a few seconds to mentally process the plan the semifinal battle begins. It all goes according to the good guy's plan until scorpio retreats to the Simpson household to enact his evil plan. after they return to the house they find a note that reads 'I have abducted the 2 girls if you want them back you must join me in my base in Cyprus creek don't be late or else signed hank scorpio '. Isabella angrily seethes 'I'm going over there!' phineas interjects 'No Isabella! you're too angry to make good decisions right now leave it to me and bart.' The true final battle and ending are in part 4.

(Author's note rachel and Abigail fought back but were forced to surrender when scorpio pointed his flamethrower and threatened to burn homer, Marge and Maggie unless rachel and Abigail stood down)