Enjoyable episode overall. I loved the conflict they had with an alien species. I dont mind these kinds of predetermined time travel episodes but I do think they wound up responsible for a little too much. Theyre responsible for the destruction of a planet, the contiunuing redding of mars, and also they killed the dinosaurs. It feels like the consequences were a little too high. A reminder of how nutrek dials everything up to 11. It's not just butterfly effects changing history it's like everything.