Ben 10: Aliens

Ben 10: Aliens is a new series featuring Ben Tennyson, working on his own until being joined by Rook in Season 3

Plot
Ben recives a new Ultimatrix called the Powermatrix and unlocks old and new aliens, now Ben defeats villians to save the world once again 

Characters

 * Ben Tennyson (Present)
 * Rook Blonko (joining Ben in Season 3)
 * Max Tennyson
 * Gwen Tennyson
 * Kevin Levin
 * Ben Tennyson (past,flashback)

Villians

 * Ghostfreak
 * The Mummy
 * Dr Vicktor
 * Wolfie (known as the Yenaldooshi)

Aliens
Basically all the aliens through the ages there are also new ones like
 * Flightbird
 * Overkill/RocketRaccoon
 * Shockblast
 * BlackKnight
 * SwordStorm
 * Stormblast

Trivia

 * Ben works alone and hasn't met Rook
 * Ghostfreak returns along with his crew (see above)
 * The Powermatrix has the Ultimate feature
 * Ben has his AF/UA appearance
 * During the series Ben and Rook (in Season 3) will team up with other heroes/Characters (for example- Iron Man, Spider-Man, Mordecai and Rigby, Gumball and Darwin, Scooby Doo)
 * Ghostfreak and his crew calls the Yenaldooshi ,Wolfie for some reason