Sinopse:

Shining friendship and strong claws! Metal Cardbot W! After the Speranza incident, humans and Metal Cardbots began to coexist on Earth. Jun, a boy chosen by the Metal Breath, and his partner Blue Cop discovered a way for humans and Metal Cardbots to coexist. Then one day, a "Wild Cardbot" appears, holding a 60 million year secret. Now, a new encounter begins to shake the world. (Source: Metal Cardbot Wiki)