BW144: The Dream Continues!

Synopsis
Another journey comes to a close, but memories and friendships will always last forever.

Ash's journey through the Unova region has come to a well-deserved close. He returns to Pallet Town with his new friend Alexa from the Kalos region. Team Rocket is called back to headquarters and despite their numerous failures, Giovanni assigns Jessie, James and Meowth to infiltrate and conquer the Kalos region, but not before one last heist at Professor Oak's lab. Can Ash repel the attack? And a new journey for Ash will soon begin.

Trivia

 * This episode is the season finale of Pokémon: BW Adventures in Unova and the series finale of Pokémon: Best Wishes!
 * This was the only time Gary, May and Max made an appearance in the Best Wishes Saga.
 * Jessie's Wobbuffet returns after being on hiatus throughout the Best Wishes series due to not being a Unova-native Pokémon.
 * This is the second time in the Pokémon series where Ash leaves for the next region before the start of the region's respective series. The first time was JE158: Hoenn Alone!, where he left for (and arrived in) the Hoenn region before AG001: Get the Show on the Road!.
 * "Who's that Pokemon?": Bulbasaur (US): Zekrom (JP)
 * The post-credit scene in which Delia puts back the photo was cut in the dub.