Pitré no es verde / Pete is not Green

N3 is a young humanonid who gets lost during an interstellar journey on his flying motorbike and ends up on Earth, in the Bay of Cadiz to be precise, where he is rescued by the sailors of the mythical Vaporcito. This leads to a series of adventures in which Pitré ('Pete'), which is what his new local friends end up calling him, learns the idiosyncracies of life on Earth and how it is different from life on his planet, which has already been devastated by the actions of his ancestors. The alien decides to stay here in order to help humanity prevent the same thing happening on Earth as happened on his planet, so he makes plans to halt climate change and the extinction of different species.