The bittersweet sequel to Star Treks I, II, III and IV was indeed the "Final Frontier", one last voyage for our heroic Captain Kirk and the brave crew of the Enterprise – except for another one to follow.
And then of course the several dozen spin-offs and spin-off sequels to follow. "The Final Frontier" sees a special guest appearance by the one character fit to take equal billing with William Shatner: God. And so this RiffTrax deserves an awe-inspiring guest appearance by none other than Kevin Murphy, Mike's riffing companion for years on the Satellite of Love!
It's a RiffTrax lover's dream come true. (And Mike and Kevin promise not to make any jokes comparing the Enterprise and Charmin toilet paper.)