Based on the 2009 visual novel of the same name, Steins;Gate may be the best use of time travel in fiction.
Set in the summer of 2010, Steins;Gate follows Rintaro Okabe and members of the Future Gadget Laboratory. Okabe accidentally finds a way to alter the present by sending text messages to the past. However, the consequences of altering time are deadly.
Steins;Gate is a slow burn. Although known to turn off some, the first half provides enough breadcrumbs to keep viewers interested. However, the second half is well worth it. Plus, repeat viewings will show how beneficial the first half is in building the world of Steins;Gate.