Due to the growing number of Insecticons on Earth, Cosmos is sent off planet in retrieve a robotic insecticide. When Cosmos returns, he is covered with spores from a robotic plant that begin to grow out of control. Using Blasters music to repel the plants, the Autobots recover Cosmos. Megatron and the Decepticons attack, but are quickly repelled. Later, when the Insecticons attack the robot plants destroy them. Optimus Prime uses Omega Supreme to send the plants off world.
—Shatterdaymorn