Everywhen (2013)

Plot

A young boy embarks on a perilous journey through an alternate reality to rescue his five-year-old brother, who is struggling with suicidal thoughts. Faced with the unsettling news of three billion people vanishing, he must navigate this strange world, confronting its dangers and mysteries. As he battles against time and the surreal challenges that arise, his determination to save his brother becomes the beacon of hope in a chaotic existence. The stakes are high, and the bond between the brothers fuels his quest for a way back home.