Leo, a lonely man and on the brink of death due to lifelong heart problems, accidentally triggers a time-travel game on his old phone, transporting him back to 1995. There, he meets his younger self and is challenged to win a life-or-death game of "Langit Lupa" (Heaven and Earth), where victory means staying on Earth and defeat means going to Heaven. Together, they confront the game's challenges while pursued by a relentless opponent, fulfilling their childhood desire for freedom and play.