Nicktoons Unite is about Vlad Plasmius, Sheldon J. Plankton, Denzel Crocker, and Finbar Calamitous plotting to take over the universe. And, to make their plan succeed, they've even built a Doomsday device called the Syndicate! Now, Danny Phantom, Spongebob Squarepants, Timmy Turner, and Jimmy Neutron are the universe's only hope! Play as each one of them in 4 different worlds, each with their own special abilities. The battle is on!