| Dog City | |
| Air Date | January 16, 1993 |
| Written by | Robert N. Skir, Marty Isenberg & J. D. Smith |
| Director | John Van Bruggen (animation) |
Bruno is convinced that aliens are invading Dog City. Eliot decides to take this as a cue for this next Ace Hart Adventure.
Eliot sends Ace on a high-flying adventure to the moon to find out what happened to Arfstrong, the first mutt on the moon, who disappeared soon after he landed. Once there, Ace gets tangled in a web of espionage that includes Baron Von Rottweiler, Bugsy Vile and a cat named Bestov Breed. Ace races to save the moon from the clutches of the bad guys.
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