4) Sara Unleashes an Alien Invasion
https://www.youtube.com/watch?v=A4TxaDwQoL4
In the first case of the Legends screwing up something so bad they had to spend an entire season fixing their mistake (in this list, anyway), the season six premiere found Sara kidnapped on an alien spaceship, with many other aliens imprisoned inside. Although her fellow Legend Gary frees her, Gary reveals that 1) he’s secretly been an alien all this time, and 2) his alien fiancée Kayla has abducted her for unknown purposes. In her attempt to escape the ship and her abductor, Sara frees all the alien containment pods which fall into a wormhole and crash-land on Earth throughout the timeline. Also, Kayla eats Spartacus, but it’s no big loss. (Season 6, “Ground Control to Sara Lance”)
