사라진 헬로카봇 마이티가드의 비밀을 찾아 또봇 닥, 쎈, 붐이 출동한다

One day with strong waves and a storm! Isolated in the sea, Kishimishi calls for rescue from fire truck toys. A.C.E. has been bothering toy cars They opposed the rescue efforts of the villain, Kishimishi The Cabot of Justice, Mighty Guard! Ready, Guard, Cure, and Help go to sea to rescue Kishimi. After that, the Hello Carbot Mighty Guard hasn't heard from you for three years Fire truck toys are waiting for Mighty Guard to come back. Tobot Boom thinks there's a secret behind this Find Mighty Guard and Doc, Ssen, and Boom will be dispatched together.