11.22.63 (2016)

Based on Stephen King’s novel, 11.22.63 follows a schoolteacher who travels back in time to prevent the assassination of President John F. Kennedy, only to discover the personal and moral consequences of altering history. Blending period detail with elements of mystery, suspense, and character-driven drama, the series examines how the past resists change and how small actions can reverberate across time. Its focused storytelling and atmospheric reconstruction of early-1960s America give it a distinctive place among modern limited series.

Från IMDB:
Jake Epping, a teacher, gets a chance to travel back in time to avert the death of John F. Kennedy. However, history's aversion to alteration and his love for the era and a woman endanger him.