Four decades in the making, it's the crossover that fans have demanded! Kirk, Spock, and Autobots! Decepticons and Klingons! Optimus Prime and the Prime Directive! When Kirk, Spock, and the entire crew of the USS Enterprise investigate problems at a remote mine, they're met with an explosive battle between powerful warriors who change into vehicles from the 20th century! As the battle between the Autobots and Decepticons rages, it's up to Kirk to decide – does he violate the Prime Directive and interfere in a war that's raged for millennia? And how will the Klingons complicate the issue? It's cartoony fun between two of the most popular science fiction franchises in the world! Transformers Hall of Famer John Barber and the world's most prolific Star Trek comics writer, Mike Johnson, team up with artist Philip Murphy (Powerpuff Girls) to tell an adventure that could only appear in comics!