Yankee Doodle Pigeon and the members of the Vulture Squadron, Dick Dastardly, Muttley, Klunk and Zilly, are introduced shortly. We witness their first attempts to stop that pigeon.
Yankee Doodle Pigeon now flies bravely across open water carrying top secret messages to ships at sea. The General transfers the Vulture Squadron to sea duty on board a flat deck ferry boat.
Dick Dastardly is fed up with Zilly being a scary cat. So, he calls for a doctor who hypnotizes Zilly. Now Zilly changes into the bravest Vulture Squadron warrior.
Cleverly disguised as pigeons our militant men once again try to catch Yankee Doodle Pigeon. Not knowing they'd be better off as a cuckoo.
High in the sky our gallant courier Yankee Doodle Pigeon now sweeps swiftly trough the canons of the Swiss Alps. Of course, followed by Dastardly and his men who are having their planes rocked.
Having made a mess of several operations, Dick Dastardly comes to the conclusion an eagle is much easier to fetch than a pigeon.
The inimitable entrepreneurs of the Vulture Squadron drop in on a mad professor's laboratory. He gives them a chance to try his flying inventions on the pigeon instead of Klunk's.
This time around the group try to get Yankee Doodle by shooting arrows at him. They all miss Yankee Doodle and Dastardly suggest they they need glasses. So off they go to take an eye test. They all fail and get glasses. However the glasses make their sight worse. Everything Muttley sees is farther than it really is. Klunk's vision is multiplied and he sees more than what is really there. Zilly sees everything upside down. Then The General gives Dastardly glasses and all he sees is magnified.
The episodes opens with the gang doing their normal thing. One by one they run out of fuel. One of the gang suggest they can never catch Yankee Doodle because they run out of fuel. Klunk gets the idea to fuel while in the air. They try many different ways of in-air fueling.
Dastardly offers to give The General Proof that the squadron is doing its job and not just collecting flight pay. Muttley is put in charge of taking pictures.
The General sends over a movie director to film the crew and see what they are doing wrong. The crew goes about their normal business and the director loves the footage he is getting. The crew destroys the film and the director is very upset.
Zilly,Muttley and Klunk refuse to obey Dastardly's command because their enlistments are up. Dastardly cries and makes them feel bad so they decide to go along for one last time. The crew tries to try and feather Yankee Doodle but it doesn't work. They try a wreaking ball. It fails. The crew decides to leave for good this time. Yankee Doodle flies by and scares everyone so they decide to go get him. Dastardly tricks the crew in to reenlisting for four more years.
The General calls Dick Dastardly to tell him he is allowed to take a two weeks furlough. Zilly, Klunk and Muttley now have to try to stop the pigeon without their leader. But they can't do without him.
Muttley daydreams he's a stage actor being upstaged by Dastardly (in a typecast role).
Equipped with Klunk's latest invention - a weather machine - the Vulture Squadron tries to stop Yankee Doodle Pigeon for the umpteenth time.
The General is coming to the Vulture Squadron's hangar to inspect Yankee Doodle Pigeon having been caught. Since our inventive idiots appear to be still unable to stop that pigeon before the General arrives, they hire an actor pigeon to make the General believe it's the real Yankee Doodle Pigeon.
According to Dastardly the Vulture Squadron will certainly be able to catch Yankee Doodle Pigeon if they learn to think like a pigeon. In order to achieve this, they should also sleep and eat like a pigeon.
During 'Operation Catapault,' Dastardly falls out of the plane and lands on his head. As a result of this, he loses his memory. Klunk takes command of the squadron, but their operations are no more successful than before. Eventually, Dastardly, Zilly and Klunk all fall on their heads from a plane. Dastardly's memory is restored by this, but now Klunk and Zilly don't seem to know who he is or who they are...
Dick Dastardly, Muttley, Klunk and Zilly experience great difficulties finding the pigeon among many other birds going south to hibernate.
The complete collection of Muttley's medals appear to be stolen. Muttley insists on Dick Dastardly helping him to get back the medals. Until then, he refuses to do his duty.
Muttley dreams he's a circus star, with rival Dastardly plotting to sabotage the show.
Continuing his dangerous task of delivering secret messages, Yankee Doodle Pigeon now flies above the frozen area of the northern front. Of course, hotly pursued by Dick Dastardly and his Vulture Squadron
Dick Dastardly lets successively Klunk, Zilly and Muttley come up with an idea to get Yankee Doodle Pigeon. Muttley develops a bird dog sensing device that's certain stop the pigeon.
Having crocked another plane, the Vulture Squadron drops into Sam Swami's tent. He who can look into the future, predicts a better future for our fearless flyers, but a worse one for Yankee Doodle Pigeon.
The General sends a camouflage expert to help the Vulture Squadron out. These vicious men will certainly stop that pigeon while in disguise.
The Vulture Squadron is transferred to a place where there's positively no pigeon except Yankee Doodle Pigeon.
Muttley dreams he's a western hero thwarting outlaw Dastardly's bank robbery.
Yankee Doodle Pigeon now flies above The Netherlands, of course pursued by the preposterous Vulture Squadron, trying to catch the brave messenger with a windmill plane.
The General calls to tell Dick Dastardly there'll be no birthday celebrations until they stop Yankee Doodle Pigeon. Dastardly wonders who's birthday it is, and comes to the conclusion it's the General's. He decides to bake him a cake and deliver it to him right after catching the pigeon.
Klunk develops a plane with a spare plane that will save our fearless flyers in case of disaster.
While painting a flagpole, Muttley dreams he's a movie stuntman, with director Darryl O. Dastardly trying to do him in.
While playing in the woods, Muttley dreams he's Daniel Boone and Dastardly is a renegade Indian making off with his girl.
Muttley dreams he's a deep sea treasure hunter, with Dastardly out to steal the treasure he eventually finds.
Muttley dreams he's Leonardo DaVinci, trying to invent the first flying machine.
Muttley dreams he's racer Barney Olfield.
Muttley dreams he's trying to be the first swimmer across the English Channel.
Muttley dreams he's trying to reach the North Pole. Dastardly tries to beat him to it.
Muttley dreams he's an inventor, with Dastardly stealing all his ideas.
Muttley dreams he's a jungle lord.
Muttley dreams he's a space hero, with Dastardly as a being on a planet plotting Muttley's demise.
Muttley dreams he's a superhero.
Dick Dastardly è a capo di una squadra di piloti che durante la prima guerra mondiale devono fermare un piccione viaggiatore, Yankee-doodle, al fine di evitare che questi consegni la posta al nemico (da qui il titolo della sigla di apertura "Stop the pigeon" - ferma il piccione - cantata dallo stesso Dick Dastardly).