Jon Kent (Superboy) is visiting Big City with his parents for the funeral of an old family friend. His best friend, Damian Wayne (Robin), decides to join him and show him around the city.
During their visit, the two young heroes encounter Dynomutt, the cybernetic Dog Wonder, who is injured and desperately needs their help. Things become even more complicated when Dynomutt's longtime crime-fighting partner, the Blue Falcon, appears to have turned against him.
As Jon and Damian investigate the strange betrayal, they uncover a mystery involving the villainous Red Vulture. The Super Sons must work together with their new Hanna-Barbera allies to uncover the truth and save their friends.
