As Troy leaves, Gillian Jacobs and Alison Brie explain Geothermal Escapism Sean Thomas January 23, 2014 Television For Community fans this is a sad day, Troy (Donald Glover) prepares to leave Greendale and sets off on his own adventure for the time-being. Meanwhile, Abed (Danny Pudi) organizes an epic going away activity befitting his best friend’s departure. What starts out as a fun little game grows into a heated, high-stakes competition destined to make history at Greendale. Of course the only true way to send off Abed’s dearest schoolmate is to play a school-wide game of “The Floor is Lava” (obviously the most fun game of any childhood) and as you can imagine, everything goes horribly wrong. Joel McHale, Gillian Jacobs, Alison Brie, Yvette Nicole Brown, Jim Rash and Ken Jeong star. John Oliver guest stars as Professor Duncan. Jonathan Banks guest stars as Professor Hickey.