The Mayor and Carol work late when strange events begin to happen.

Extreme Sports host, Dynamo, holds a competition to see who will go on the City Mars mission.

Duke DeTain and Shirley Keeper investigate the true identity of the Master Criminal.

Firefighter Buster Lloyd gets the opportunity to live out his fantasy of being a police officer.

Sanitation worker Shirley Keeper educates local residents on how to take care of their city.

It’s the day of the big rocket launch, and the entire city has Mars/launch fever!

It's Christmas Eve and Officer Duke DeTain is the only cop on patrol without a partner.

Astronauts reach Mars orbit and prepare to launch their probes, but Tippy Doorman has other plans.

Harl attempts to prevent Tippy from bringing the fabled "Mars Door" back to Earth.

Tippy Dorman, faces the trial of the century after his attempt to take over the world.

Mayor Fleck is running for re-election against R E Fendrich who will stop at nothing to win to use his new power to defeat Sinclair once and for all.

When Duke loses his memory, Snake Rattler tricks him into believing he's Snake’s criminal henchman.

When Rooky discovers it’s Chief Wheeler’s birthday, she is determined to make it a memorable.

During the dedication ceremony of the city’s deep sea vessel to honor Duke, Freya and Harl, the ship is accidentally set adrift.

When the mythical ocean monster, the Quacken, is sighted off the coast, famed adventurer Jessica Sharpe vows to capture it.

Rooky and Grizzled go undercover aboard the Guardian of the Oceans in search of a lost pirate treasure.

Fendrich and his gang learn of Cluster’s hidden junkyard treasure. Harl Cluster, Shirley and Tread unite to protect it.

Snake and Daisy take advantage of Tread to get him to act as their getaway driver to pull off a heist.

When Fendrich threatens to ruin Sinclair's Holiday Gala, Duke intervenes to save both the party and the holidays.

Freya takes Billy and Mark on a ride along, but when things get out of hand, it's up to Mark to save the day.

After thawing his best friend, Dr. Wylde, Dr. Wexler must help Wylde adjust to this modern, one-year-later world.

Tired of living with her overbearing mother, Daisy starts her own business in order to buy a dynamite factory as a new hideout.

With the help of Harl Hubbs' giant crane, Ave Empire is determined to put his opera house in the perfect spot in the city.

Detective Sam Grizzled is hired as a consultant on a movie about an action-packed bank robbery he foiled in his early police days.

When an exhausted Duke Detain makes an uncharacteristic mistake on duty, he volunteers to take his first-ever day off.