Part 3 was more of an Arrow/Legends Crossover with Supergirl and The Flash making cameos and I was fine with that. The bulk of the episode had Team Arrow and select members of Team Legends in stasis on the Mother-Ship as their comatose selves try to make sense of what is real and what are flashbacks of their former lives. I liked this plot twist as it gave the writers a chance to bring back some former characters, most notably Oliver's parents as well as Laurel. The big cliffhanger at the end had the Mother-Ship bearing down on Earth. To be continued in Legends of Tomorrow.......