London Police Officer David Calvi doesn't work at his old department anymore; not since everything happened with the girl he promised to love forever even though he couldn't stop losing her. After meeting the love of his life, Emily, David struggles to keep their relationship afloat when his personal demons start to get in the way. Meanwhile, Emily battles with trauma from the past, trying to understand how she can let someone love her again.


Striving to come up with a way to make things right, David's late grandfather leaves a strange and otherworldly gift that seems like the perfect solution to all his problems. With the ability to change time itself, he tries to reset his and Emily's relationship. David only wants to make things right, but finds out that forcing destiny always ends in disaster.


There's so much to lose in a struggle for the one person he and Emily would give anything to keep safe. With limited chances to bring her back into his life, even the slightest mistake and David could lose her - or be gone himself - forever.