Canis Majoris is a science fiction short film about affection and adolescence that has its story developed in the satellite-cities of Brazil’s Federal District. Ícaro is a teenager from Brasília looking for things to get out of the summer break boredom. During this period, going home after a soccer match, he meets João. Together, they witness the appearance of a new star in the sky, that turns the nights into red and hot. Trying to deal with growing up, the boredom and the extra heat in this summer, Ícaro and João begin to spend the nights together on Brasília’s streets and realize that, beyond the star, something else is rising between them.