5-10 Years Later At Apocalypse Island, Penny was captured by the villainous Apocalypse King, until Sherman arrived and busted Penny out of the chains and stopped Apocalypse King.
The next day when Mr. Peabody brings Sherman to school and Patty brings Penny to school. The children spend time together at school until the new substitute teacher called Mr. David arrives and teaches everyone about World War II.
That evening when some kind of evil spirit. He thought it was a woman, but it turned out to be a small teenage girl. Her name was Red Flame and told them she is starting a war, she banished Sherman to The Forbidden Realm.
However, it's now up to Sherman And Penny to put an end to the World War before Red Flame can have a chance to take over the world. Sherman and Penny get help with Mr. Peabody and they have decided to go to The Military Base to check the Vitallium Metal is safe before Red Flame.
