In this episode Mark talks about one of his favourite films and one the best films of the "Star Trek" film franchise: "Star Trek IV: The Undiscovered Country" directed by Nicholas Meyer. Following the destruction of the Klingon moon Praxis - after which it is believed might see the potential extinction of the Klingon race entirely - the Klingon Empire decides to pursue a path of peace between themselves and their longtime adversary the United Federation of Planets and its Starfleet; and as a consequence Captain James T. Kirk (William Shatner) and the crew of the soon to be decommissioned USS Enterprise has been volunteered to be the Federation's symbol of peace and also to escort Chancellor Gorkon (played by David Warner) to peace talks due to take place on Earth. However, after the Klingon Chancellor's ship is seemingly attacked by the Enterprise and Gorkon is seemingly assassinated by Starfleet officers, Captain Kirk and Dr. Leonard McCoy are put on trial and are sentenced to life in prison on the reputed "Alien's graveyard", ice-covered, Klingon prison planet of Rura Penthe - while Captain Spock (played by Leonard Nimoy), assisted by his new protégé Valeris (played by Kim Cattrall), investigate who it was that attacked and killed Chancellor Gorkon in an attempt to preserve the prospect of peace between the Federation and the Klingons. However, parties on both sides who wish to continue the conflict between Federation and the Klingon Empire are conspiring, including Klingon General Chang (played by Christopher Plummer) - and it is all up to Captain Kirk, Captain Spock, and the crew of the Enterprise to do all that they can to reveal the conspiracy and allow for the peace talks between the Federation and the Klingons to take place and be successful. The film is the sixth and the final film to feature the main cast members of the "Star Trek: The Original Series" TV show and it is a fitting tribute to their enduring legacy that will continue to live long and prosper for many years to come.