Well, who knew that Agent Christopher was a babe?
This was a fun episode, although I have a hard time with the concept that anybody could actually romanticize 80s fashion.

But I do like that the other characters are getting their chance to time travel, and seeing Lucy and Jiya as Cagney and Lacey, lesbian undercover detectives ("usually as prostitutes") cracked me up. And back in the present, Flynn even got a character-building moment, convincing Christopher to be with her family. And there were a couple of surprises for Wyatt-- possibly not good ones.
The twists and turns of time travel and altered timelines can be weird. When the group left on their trip, they left behind an Agent Christopher who had never known them before the time machine project. When they came back, they were greeted by an Agent Christopher who had been carrying this secret knowledge for over 35 years and who had made each life decision much more deliberately-- but who was also limited by the vast quantity of things she didn't know. There was quite a change in her demeanor after the trip. Is this because of the relief of no longer having to keep this secret, or is it because this altered life, including a non-estranged mother, has made her literally a new person?