2) The Enterprise-E Crew, Star Trek: First Contact
When the Borg travel back in time to prevent the Earth from making First Contact—as in Zefram Cochrane’s (James Cromwell) pioneering hyperdrive space flight, which brought Vulcans to Earth, which in turn led to the creation of the Federation—Captain Jean-Luc Picard follows to stop his most hated enemies. This does not go without a hitch. Picard is only obsessed with defeating the Borg, and delegates the future of humanity to William Riker (Jonathan Frakes) and Geordi LaForge (LeVar Burton), who tell Cochrane what the future holds, which doesn’t seem great. However, everything works out and the timeline is maintained, and you can’t argue with the results.