A mathematician tries to convince his machinist friend to travel through time with him, leading to a heated discussion of man’s hubris and the possible paradoxes that could open up if they disturb the time-space continuum.

A young man struggles to rationalize with fate as he watches the people he loves experience immense pain and suffering. As he learns more about the physics of the universe and slowly teaches himself how to travel through time, he begins experiencing surreal moments where he can actually see the alternative paths he and his loved ones could have taken, and how they would all have been different if they had.

A stranger from the faraway future appears in a young man's room in 1952 with an urgent mission.

In a universe where time travel has become the norm, an inexplicable suicide epidemic afflicts the people who successfully ventured to the past, leaving a grisly detective with a confounding mystery to solve.

Three US time travelers in a Cold War alternative history get stuck in a time loop and decide to kill themselves to escape it. Unbeknownst to two of them, the attempt to cause their own demise will doom them to the time loop forever.

In the far future, an invention called "the prism" uses quantum mechanics to cause divergences in future timelines and create a means of communication across these alternate realities. Two different women explore the choices they have made in their own lives and the regrets they harbor--and have to figure out how to ultimately make peace with their decisions.

A woman tries to understand the space-time continuum and his love.

When married scientists invent a means of observational time travel, they hope to expose the WWII atrocities committed on Chinese prisoners by the Japanese at Unit 731 in Pingfang. However, their efforts only stir up political controversy and hateful backlash from denialists, and ultimately reveal that nations - and individuals - often choose to hide from the past rather than confront it.

While waiting for an unrequited love to return, an elderly woman ruminates on her role in discovering an elegant alien technology. She feels death approaching and regrets not seeing her love again before she passes—only for him to arrive in the nick of time.

Mrs. Berthelson is the only human that can travel through time, so she journeys to a post-apocalyptic Earth where she tries to sell life-saving supplies to the last surviving humans as they are about to escape the planet.