Via Starwars.com:

Note: Spoilers for the Season Two premiere of Star Wars Rebels follow.

Star Wars Rebels has returned! “The Siege of Lothal” kicked off Season Two, and the hour-long movie event didn’t hold back. At all. The crew of the Ghost is part of a bigger machine now. They’re working with the rebellion rather than continuing to go on solo missions, and the change in structure has required some adjustments — I’m looking at you, Kanan. While Hera and company worked with the Phoenix Squadron, Darth Vader arrived on Lothal to track down the rebels and stop them. Because there was so much to take in, let’s review eight of the coolest moments in “The Siege of Lothal.”
1. Everything about Darth Vader

Darth Vader has appeared in Star Wars Rebels before, but it was only briefly. He made the full scope of his power known on Lothal and laid a careful, multi-part plan for the Ghost crew. Whether he was intimidating Minister Tua, engaging Kanan and Ezra in battle, or single-handedly taking on a squadron of fighters, he was the fearsome Sith Lord we all know him to be.

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