Milwaukee police officer Matt Scheller is used to answering calls for help. He just never expected one to come from the future.

When an anonymous caller begins warning Matt about crimes and disasters before they happen, the information seems impossible—until Matt arrives in time to save lives. A deadly crash. A violent robbery. A murder waiting to be discovered. Again and again, the mysterious voice puts Matt exactly where he needs to be.

Soon, Matt is being hailed as a hero.

But changing the future is not the same as fixing it.

Each life Matt saves alters what comes next, creating consequences neither he nor the caller can fully predict. Relationships shift. Events that were never supposed to happen suddenly become unavoidable. And while everyone around Matt remembers only the world as it is now, the man on the other end of the phone remembers the timelines that have been erased.

As Matt becomes increasingly suspicious of the caller’s motives, he is forced to confront an unsettling possibility: these warnings may never have been about saving strangers at all.

Someone in the future has a plan for Matt Scheller.

And every heroic act is bringing that plan closer to completion.

Hero Today, Gone Tomorrow is a fast-paced time-travel thriller about heroism, fate, sacrifice, and the dangerous consequences of trying to create a better tomorrow. When one phone call can change everything, the hardest question isn’t whether you can rewrite the future.

It’s whether you should.