Polly Pocket from Polly Pocket (2018) (Mattel)

Benjamin Kirby Tennyson from Ben 10 Reboot (2016) (Cartoon Network)


Ben 10 Reboot & Polly Pocket (2018): Rise of Heroes Crossover.

Prologue: A mysterious rift begins to open in the skies of Littleton. Meanwhile, in Pocket's House, the girl Polly Pocket starts to have nightmares about the end of the multiverse, the true about her Locket's secrets and her family's legacy, before getting the alert about the rift. Littleton's defenses appears on the scene trying to stop the rift, but are unable to do anything before Polly arrives with her friends and her family.
Peter Pocket, Pamela Pocket, Paxton Pocket, Pierce Pocket, Penelope Pocket, Richard, Shani Smith, Lila Draper and Nicolas Wells, they gets a scan that shows something is coming through the rift, and Polly trys to stop the rift with her Magic and the Locket's powers but suddely finds herself (unknowingly) fighting against Benjamin Kirby Tennyson, in the form of Humungousaur with the Omni-Kix Armor.

Continuing their fight across Littleton, Ben switches to Omni-Kix Diamondhead, Omni-Kix Slapback and finally Omni-Kix Rath as Polly continues to try remove the 'Pockite Crystal' from him but suddely the Omnitrix and the Pocket Locket connects themselfs and they becomes an one, Polly gets her Locket (Lockmatrix) evolved and recalibrated and a new look, she got the DNA from the Omnitrix's aliens and Ben gets his first 10 aliens forms back form the Omnitrix, Polly believing him to be a strange boy who wants the Pockite Crystal's powers for bad things; an annoyed Ben demands Polly stop as he doesn't even know what an Pockite Crystal is. Changing back to human form, Ben is shocked that no one has heard of him despite being a celebrity back home.

At NASA's hideout, Ben is locked up in a containment unit, while Nicolas Wells explains that the creature was a corrupted glitch symbiote called Nemesis in origin, but somehow completely different from an glitch and multiversal dark destructor, and that Ben didn't appear to have any Pockite Crystal's powers present in his body before his fight with Polly. Ben offers to help deal with the creature but is denied, and easily escapes into the night as Shock-Rock. Polly chases after Ben and both are confronted by Vilgax, Griselle Grande and Gwen Grande with the help of Rex Salazar, Kevin 11 and team Tennyson, back at Pocket's House, Ben and Polly explain each other's origins and the Team Tennyson (Benjamin Kirby Tennyson, Gwendonly Tennyson, Maxwell Tennyson, Kevin Ethan Levin and Rex Salazar) and Team Pocket (Polly Pocket, Shani Smith, Lila Draper, Nicolas Wells, Pierce Pocket, Paxton Pocket, Peter Pocket, Pamela Pocket, Penelope Pocket and Richard) decides to join forces to face against Vilgax, Griselle Grande, Gwen Grande and Nemesis.