As 'How I Met Your Mother' reaches the apex of its eighth season, to be followed by an ninth and final, we've seen the series dipping more and more into the past. Last week's "The Ashtray" saw the return of Kyle MacLachlan's "The Captain," while tonight's "Weekend at Barney's" will channel the classic '80s film, but its March 18 episode "Time Travelers" that has us scratching our heads. Find out what brings 'Glee' star Jayma Mays back from her season 1 appearance inside!

Any faithful TV fan well knows that long-running TV series feature a number of recognizable stars in early roles, 'How I Met Your Mother' in particular featuring 'Glee' star Jayma Mays in a season 1 episode as an unnamed coat check girl. Now, as the CBS comedy flirts with its inevitable endgame, it seems season 8 will dip its furthest back into the series yet, bringing back Mays to reprise the role in March 18 episode "Time Travelers!"

CBS' official press release rather confusingly describes that “future versions of Ted and Barney try to convince Ted to go see Robots Versus Wrestlers,” which was originally the subject of a fifth season episode. Mays' character only ever appeared in first-season episode "Okay Awesome," though she was later referenced as not being the show's titular mother.

The March 18 episode will also feature Marshall challenging Robin to a dance-off apparently, but what say you? Are you excited to see Jayma Mays' character again, despite the strange time-travel mechanics? Tell us what you want to see from 'How I Met Your Mother's  "Time Travelers" in the comments!