When MIXMASTER develops a new weapon or poison, he needs a robot to test it on. That's why he tracked down HOIST. The tough AUTOBOT is rugged enough to prove the effectiveness of any toxin, and valuable enough to the AUTOBOTS that taking him out could do some serious damage. What the DECEPTICON scientist didn't count on is that HOIST has been trained by the best warriors in the galaxy. The AUTOBOT might be a nice guy, but that doesn't mean he's a pushover. What MIXMASTER thought would be a simple test just turned into the fight of his life.