Synopsis for the TV Cartoon Clandestine Passengers

Town of Rocsteady. Alex, a young pilot who is going around the world in his hot air balloon, has just crashed in a forest. As he gets ready to take off again, a prisoner who has just escaped from prison knocks him out, changes clothes with him, and steals his balloon...

But since he knows nothing about aeronautics, the criminal soon crashes... very near the Little Circus trailers. Taking him for an experienced aeronaut, our friends welcome him and decide to repair his balloon in order that he can get back on his way. Fortunately, Alex is able to follow the trail of his balloon and sneak into the Little Circus's grounds in order to take back what is his. But, dressed as he is, how can he convince the troupers that he's telling the truth? Thanks to Swift, who quickly comes to trust him, Alex is able to take off once again in his trip around the world, where he had left off, and the dangerous criminal is arrested by the police...