Star Trek: 18 Easter Eggs In The Lower Decks Season Two Trailer

12. Physical

As seen in April's 30-second teaser trailer, Mariner grapples with a Cardassian soldier, dressed in some kind of 1980s aerobic attire.

It's not as clear in this extended trailer, but this scene appears to be taking place at Gul Madred's facility from TNG's "Chain of Command" two-parter, complete with the four (not five) lights.