The dangerous cloning experiments carried out by Megatron have created another powerful ally for the heroic Maximals: Sonar. Super-acute senses provide matchless reconnaissance abilities, while bio-cyber elements allow unmatched strength and mobility. When combined with a fiery, almost uncontrollable aggression, Sonar makes a dangerous enemy and somewhat unpredictable ally. Much to his chagrin, Megatron has unintentionally created the finest early-warning system to have ever existed- the Maximal known as Sonar!