The next best thing to owning your own dog is having a job where you get to take care of them. That's what Sam figures when she, Ally, and Cassy all volunteer at a local animal shelter. But they don't expect the trouble that comes along with the work. When dogs start showing up at the shelter with odd symptoms, the director doesn't seem concerned. However, strange coincidences start to happen and Sam doesn't believe that they're random. Confronted with the hard decision of following either her heart or her nose for a good mystery, Sam faces an emotional dilemma. Sometimes, the right path is the most difficult and this is one challenge that's going to take all of her friends to help solve.