I received a copy of this book via Goodreads's Don't Buy My Love program in exchange for an honest review. There are some spoilers. 
 This story centers on the few meager survivors of a catastrophic asteroid collision that occurs near the US west coast. This story is centered in Phoenix AZ. The main characters: Elliot and Adam are two twenty-ish men. Elliot is out and proud gay, Adam has just left a committed relationship with a woman, Jena, for whom he had no romantic inclination because he was closeted gay. 
 While stumbling through the barren and buckled remains of his neighborhood, Elliot happens upon Adam. They are overjoyed to find they are not alone. Earthquakes continue to rock the terrain and they seeks shelter together. They also become intimate within hours of meeting--which felt contrived and unrealistic. 
 They struggle to find more survivors, mainly because Elliot becomes injured and they go to the virtually empty hospital to seek medicine--again totally unreasonable that there are no emergency response measures or staff. Or even patients. I mean, virtually no one had time to evacuate, because the world government alliance (perhaps) collectively hid the imminent collision of the asteroid from the public until days before it was due to occur. (I cannot stress the inconceivability of this happening what with our 24/7 global news culture.) 
 While scouring the remains of a grocery store, Adam and Elliot learn of Refuge Inc., a place for survivors to gather for supplies and shelter. Adam wants to find this place--somehow thinking he might find his ex-fiance, but Elliot is suspicious. They do find the place, with the unwilling help of Anita and her friend, two survivors who assist Elliot to rescue Adam when he gets trapped by falling debris. 
 Now at the Refuge, Adam and Elliot are separated. They decide to cool their relationship until Adam can come to terms with his sexuality. Of course, this is complicated by Elliot being arrested for disruptive behavior and the appearance of Jena, Adam's ex, who also claims to be pregnant. 
 Elliot meets Mason, an architect of the Refuge, while imprisoned. Mason knows the Refuge is a sinister place--and he's a sinister guy. He convinces Elliot and Adam to spring him from prison--and from the Refuge. Realizing that the projected YEARS of solar blackout are a gross exaggeration of the reality, Adam and Elliot assist Mason--and they escape, though not without casualties. 
 On their own, Adam and Elliot are set upon by scavengers. In order to keep these marauders at bay--and to broadcast a message for rescuers--Adam and Elliot agree to lead them to the Refuge--where they can find food and medical supplies, as well as access to a radio transmitter. They plan to break in, but when they arrive, they find the Refuge largely abandoned. That's not to say empty--there are plenty of menacing humans and creatures within its underground bunkers. Mason is now in charge, but he's clearly deranged and poses a specific threat to the band of survivors. 
 With great risk, they find the radio and transmit their call for help, but they are attacked and lose some of their ranks. There is an HEA, but it's not the end of the story... 
 In truth, I would have stopped reading after the first 50 pages if I hadn't committed to read the whole book and write a review. The scientific facts on which this story is predicated are completely erroneous. That a gathering of perhaps 200 people in a city of 1.5 million survived earthquakes that rocked the area is such a ridiculous notion I couldn't wrap my brain around it. This wasn't a nuclear holocaust or a catastrophic virus outbreak--it was an earthquake. Lots of people survive earthquakes. That there was no coordinated National Guard/FEMA emergency response or hospital staff was simply too unrealistic to be acceptable. The writing is poor with horrible grammar, spelling and usage--so much so that the entire book needs a thorough line edit. Stat. 
 I didn't find the romance at all believable until the end of the book--when Adam and Elliot had learned enough about each other and themselves to be adequate partners to each other. Elliot started out as a very emo, effeminate man who grew up a lot in this survivor hellscape. Adam learned to express his emotions, and accept the love the Elliot offered. 
 This didn't work for me, as a romance, or a disaster story.