'Community's season 4 schedule may be a bit of a jumble, airing its Halloween episode on Valentine's Day this Thursday with "Paranormal Parentage," but it's next Thursday's "Conventions of Space and Time" that will really feel out of this world. Not only will the Greendale gang pay a visit to an "Inspector Spacetime" convention, but the episode will also feature an appearance from the heavenly body of 'Battlestar Galactica's Tricia Helfer! Get a sneak peek of the latest 'Community' with new photos inside!

Don't worry about the confusion of 'Community' airing a "Valloween" episode this Thursday, because the following week's all-new installment "Conventions of Space and Time" will feel right at home with genre fans of the series. The February 21 episode will see Abed leading the gang into an "Inspector Spacetime" convention, which feels very much like the Comic-Con conventions we've come to know and love.

Not only will 'Battlestar Galactica' vet Tricia Helfer make an appearance within the episode, but so too will 'Bridesmaids' star Matt Lucas as a new friend of Abed's bonded by their mutual appreciation of the 'Doctor Who' parody. NBC has released a number of new photos from "Conventions of Space and Time," a few of which show off Helfer's character Lauren, for whom we'll presume Jeff predictably goes shirtless to impress. Looks like Annie's not taking it well, either!

Check out the latest photos from 'Community's February 21 episode "Conventions of Space and Time" below, and tell us what you thought of last week's premiere "History 101" in the comments!