With One Line, Doctor Who Perfectly Sets Up UNIT's Upcoming Spinoff

Warning: Spoilers ahead for Doctor Who season 15, episode 4, "Lucky Day."The War Between the Land and Sea will be added to Doctor Who's main canon when the spinoff show arrives later in 2025, but the yet-to-be-revealed release date of the upcoming project hasn't stopped the franchise's flagship property from dropping a coy plot tease. "Lucky Day" doesn't just mark the return of Millie Gibson's Ruby Sunday and her struggles with readjusting to life away from the Fifteenth Doctor (Ncuti Gatwa), but also serves as a backdoor pilot to the show that will revolve around Doctor Who's new UNIT team.