When one door closes...second chances open another.... Ethan was lost after a major accident abruptly shifted him from a military life to a civilian one, from working with dogs to odd jobs.... In that time, he’d spent months healing from his physical injuries. When he connects with Badger and the rest of his Titanium Corp. group of former SEALs, Badger offers Ethan an opportunity he can’t refuse. A chance to do the work he used to do...with a twist.

Having cultivated his instincts through years of naval missions, Radar is roaming the world, working part-time for Levi and Bullard. When he’s instructed to go to Paris to help out a new start-up, he’s not sure what to expect. Especially given the caginess of Levi’s description of those who Radar would be working for. Outside of telling him, He’d fit right in, there is minimal intel on the job itself. Plus Radar’s working with two men he doesn’t know, and they aren’t willing to share their own secrets.

Jasper, watching Mason go down, is all-in on the investigation. Taking over the current investigation team, he distrusts everyone. Tesla, his cousin, expects Jasper to get to the bottom of this and fast. ER nurse Amber isn't on Masons team but knows something major is happening. The hospital is overwhelmed with men, as they want updates on Masons condition. A few look like they belong, and then a couple don't. Taking pictures of those in question, she sends them to Jasper, which starts a cascading chain of events. And none of it good.

It should have been a routine investigation. Instead, DEA K-9 agent Adam "Deck" Decker watches in horror as one Denver hospital seems to be ground zero for overdoses of a new drug. Now Deck can only hope a certain ER doctor will help him and his canine partner track down the source. Dr. Tori Sampson has her reasons for not trusting federal agents, especially ones working for the DEA. But the rash of overdoses—including a heartbreaking case involving a teen—is alarmingly high. And the new opioid is not only extremely dangerous, it defies all the usual medical treatments.

Landon, after a tough couple of years helping his navy buddy live out his last years, needed a break. Tracking a war dog named Chica to make sure it was okay sounded perfect. Especially being able to take his three chihuahuas with him. But finding a dog that had been part of a large shipment heading to a rescue across the Canadian border but had gone missing on the last stop before the border–well that was going to be a challenge. Particularly one that had a lame leg and half a paw.