After the devastating events of Avengers: Infinity War, the universe is in ruins due to the efforts of the Mad Titan, Thanos. With the help of remaining allies, the Avengers must assemble once more in order to undo Thanos' actions and restore order to the universe once and for all, no matter what consequences may be in store.
In the not-too-distant future, the aging gene has been switched off. To avoid overpopulation, time has become the currency and the way people pay for luxuries and necessities. The rich can live forever, while the rest struggle to negotiate for their immortality. A poor young man who suddenly comes into a fortune of time finds himself on the run from a corrupt police force known as the "time keepers".
In 1988, Philadelphia police officer Thomas "Locke" Lockhart, hungry to become a detective, begins tracking a serial killer whose crimes defy scientific explanation. When the killer mysteriously resurfaces nine years later, Locke's obsession with finding the truth threatens to destroy his career, his family, and possibly his sanity.