The pilot show. Mildew Wolf arrives to catch Lambsy so he can eat him for dinner, but did not factor in the lamb's guardian, Bristlehound.
Lambsy and Bristle are on a cruise ship headed for Australia so Lambsy can participate in a sheep show. Of course, Mildew shows up to make life miserable for the two.
A deserted island is where Mildew finds Bristle and Lambsy relaxing. Eventually it sinks.
Lambsy is put in a hot-air balloon and eventually joins Bristle in an airplane; all the while, Mildew is posing as the Crimson Baron (a parody of the Red Baron).
Winter has brought snow and Lambsy enjoys a variety of snow-themed activities, whilst having to have Bristle protect him from Mildew.
Mildew builds an amusement park just for Lambsy.
Bristle uses a closed circuit television camera system to help stop Mildew.
Lambsy tries out a bunch of sports, all of which Mildew uses to try to catch him.
Mildew and Lambsy, and later Bristle, use magic tricks in their ongoing battle.
Lambsy decides to run away from home, but gives up after all of Mildew's follies, thus confirming Bristle was telling the truth when quoting the following quote: "Leave them alone and they'll come home, wagging their tails behind them.
Mildew makes mechanical dummies of himself to catch Lambsy, only to get beaten at his own game.
The Masked Avenger is Lambsy's favorite TV hero and he writes a letter to the character to ask for protection from Mildew. When Lambsy finally meets the actor who portrayed the Masked Avenger while running from Mildew, the actor's fear of wolves leads him to run away when he spots Mildew. Lambsy is disappointed and goes back to depending on Bristle after he drives off Mildew.
Lambsy has joined the Lamb Scouts, a fact which Mildew uses to try to trap him.
Bristle and Lambsy search for Little Bo Peep's missing sheep, while Mildew tries disguises ranging from Little Bo Peep to Little Boy Blue, even playing a jazzy trumpet solo.
Mildew uses Lambsy's stage acting lessons as an excuse to catch him.
Bristlehound and Lambsy take a train trip and Mildew comes along for the ride.
Mildew takes advantage of Lambsy's boredom to catch him, going as far as being a pony customers can ride for 10¢. But then an actual cowboy shows up and has actually paid the dime for the ride, so he rides Mildew.
When Lambsy and Bristle get a new television set, Mildew tricks Lambsy into thinking that he is a film director.
For the Japanese theme song, the music from the original was used under a different arrangement, with new lyrics to go along with it.
