Three superheroes--Darna, Captain Barbell, and Lastikman--are appointed to protect Hero City against the impending attack of an evil scientist, Dr. Sternberg.

A Trash Monster creates havoc in Hero City. Fortunately, the Hero City Kids Force are quick to contain it for good as they learn the importance of keeping one's surroundings.

The McCoolits learn the value of eating healthily when Dr. Sternberg starts to siphon all the veggies he could find, and the three heroes take action against it.

Bad jokes and pranks take hold of the city as Dr. Sternberg unveils his newest invention. The hero trio take up arms to prevent him from causing more trouble.

Cyborgana unleashes a hypnotic game app that causes havoc in the city. With the people spending too much time on gadgets, the kiddie superheroes race against time to bring them back to normal.

They say dogs are man's best friend, but owning a pet comes with great responsibility. Lastikman learns this valuable lesson when Dr. Sternberg traps all the dogs in Hero City.

A bossy Darna brings tension to the team as the hero trio vie for best house design in the Hero Festival. With an attack from Dr. Sternberg further complicating things, the kiddie heroes have to resolve their differences to protect the city.

Dr. Sternberg invades the city fair when he unleashes his clown minions. The hero trio fight against the bad doctor as they stop the clowns from spoiling the fun in Hero Festival.

Conflict arises when Captain Barbell accidentally ruins Nono's favorite toy car. However, the kiddie hero has to set aside making peace with Nono as he and his comrades battle the Toy Monster.

The McCoolits are excited to join their first Hero City RC Tournament! But a mysterious player uses wicked tricks that make it almost impossible for anyone else to win the race.

Darna, Captain Barbell, and Lastikman have fun playing water games outdoors. However, the hero trio soon learn their lesson as they come face-to-face with Fire Monster.