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.

In a future Boston, a passenger train disappears from a subway system so complex the system creates a second dimension. Government officials work to retrieve the missing car, but struggle to solve the impossible mathematic equations the system created.

A Chinese American girl is sent to repair the malfunctioning universe on the verge of breaking down. She learns that fixing the world may mean the demise of her comatose mother and must decide if she can fulfill her duties.

All over a large city, people are disappearing down rabbit holes into fantasy worlds which are tailor-made just for them. As a young woman watches the streets of her city empty, she begins to worry that her own custom-made rabbit hole may never appear—and she could be stuck in the human world forever.

In a universe that regenerates continually, producing the exact same timeline with each big bang, humans struggle to find meaning in lives over which they have no control.

As a man waits in jail for the next stage in his journey through the justice system, he lives through visions of what the justice system could be in parallel universes, only to wake up and realize he can only exist in one system.

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.

After the Collapse, only dimension-hopping salesmen can save humanity from its ruined atmosphere and pH-imbalanced oceans.

A young man gets a job working the graveyard shift at a local burger place and realizes that several of the costumers who come at night are from parallel universes. He plots to escape his world and travel across all the other universes, but there's a catch—once he leaves his home universe, he can never go back.

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.