The Office of Special Projects (OSP) operates in Los Angeles and focuses on high-stakes cases from around the world. Each member of this agency's team are highly-trained undercover agents and technology specialists who work to apprehend criminals deemed a threat to national security. The team is lead by G Callum and Sam Hanna. Callum is a undercover specialists who has infiltrated some of the most dangerous criminal organizations in the world. Sam Hanna is a retired Navy Seal who specializes in surveillance and is in charge of monitoring the rest of the team.