The Battle for Berk and Equestria Part 1: Old Villains' return

The Battle for Berk and Equestria Part 1: Old Villains' Return is the first half of the season 10 finally of The Chronicles of Equestria and The Isle of Berk.

Trivia

 * The episode continues in The Battle for Berk and Equestria Part 2: The Rise of Lockdown.