Voltron vs the Forces of Evil
Princess Allura Butterfly’s kingdom is at war. In order to protect his daughter, King Alfor Butterfly banished her to the Earth dimension where it’s relitavely safe (or safer than Mewni) and his royal engineer Coran goes with her to watch over her. They live in a big mansion on the outskirts of a small city.
At school, she meets the “Safety Kid,” Hunk Diaz, a misunderstood bad boy named Lance, and a scrawny genius named Pidge.
One day, the Prince of the Underworld, Keith Lucitor (and Allura’s ex-bf) shows up. He is searching for someone. Allura is suspicious so she and the gang follow him around. Together, they witness an explosion in the woods and go to find a demon in the center. His name is Shiro, and he’s the one Keith was looking for.
Shiro, along with Keith’s non-official mentor Sam Holt (who helped raise him after King Tex Lucitor died) and Sam’s son Matt have been missing from the Underworld. It’s revealed that Pidge is really Katie Holt, a demon and daughter of Sam that disguised herself as human and came to look for her family on Earth.
What little Shiro remembers points the group to the war on Mewni, and they decide that they’re going to have to come together to not only save Mewni, but every dimension.