Terriers follows ex-cop/recovering alcoholic Hank Dolworth (Donal Logue) and his best friend, Britt Pollack (Michael Raymond-James), who've partnered to create a small, unlicensed private investigation business. When the ragtag duo uncovers evidence that leads to a murder investigation of one of Ocean Town's most powerful residents, they use Dolworth's police smarts and some questionable tactics to conduct their own inquiries. Things get even more complicated thanks to Hank's ex-wife, Gretchen (Kimberly Quinn), and his former partner, Detective Mark Gustafson (Rockmond Dunbar). Meanwhile, Britt attempts to balance his life helping his BFF while keeping his relationship with girlfriend Katie (Laura Allen) going. Throughout it all, friend/attorney Maggie Lefferts (Jamie Denbo) is there to offer her legal advice.