It has been three years since MEGATRON and the DECEPTICONS last threatened the world. Earth's rulers believe MEGATRON fled the planet in defeat, but OPTIMUS PRIME knows better.
An alien transmission is intercepted, revealing MEGATRON's plan to spread chaos and fear among humans, and unleashes the ultimate DECEPTICON assassin: SHOCKWAVE!
The AUTOBOTS must hunt down MEGATRON, neutralize SHOCKWAVE, and save their new home from total destruction at the hands of the DECEPTICONS.
