A cave-in, a cranky geologist, and one career-defining disaster waiting to happen. Welcome to Adriana's worst day ever.

Adriana Phelps has everything riding on the success of the most daring high-rise project ever attempted in the Midwest. She's clawed her way to the top of a male-dominated industry, built her life around ambition, and has zero time for distractions... especially the attractive kind with smug smiles and opinions about bedrock.

So when a construction crew accidentally drills into an undiscovered cavern beneath her site, Adriana doesn't just see a setback. She sees her whole future crumbling.

Enter Brent Frazier, the maddeningly calm geologist who thinks her precious tower sits on sacred ground... and who somehow manages to look annoyingly good in mud-streaked khakis. Brent insists the cave system is historically significant, possibly ancient, and definitely unstable.

Adriana insists he's a living, breathing test of her professionalism.

Then the cave collapses, trapping them both inside.

As survival forces them closer and the truth buried beneath the surface comes to light, Adriana has to confront more than geological fault lines. Because what's threatening to fall apart isn't just her career... it's also her own carefully built walls.