The year is 1985. Oliver, a boy with an overflowing imagination, moves with his family to the southernmost corner of Europe, just as Halley's Comet is about to pass by. These events will mark a before and after in the emotional life of Óliver, who will look to the stars for the solution to his problems in the new school, in the neighborhood and at home. To make matters worse, his grandfather, nicknamed "el majara" is encouraged to help him interpret the comet's message and take a step forward in his new Universe.

Javier comes from the future to recover María's lost love. Together, they relive the magic of the day they met and repeat the journey they made from a sunrise in Madrid to a sunset on the Andalusian coast. Everything to get María to be the full of life girl he once fell in love with.