Sargeant Ella Mendoza is an extremely intelligent, physically capable agent for the USPM. A secret agency not affiliated with the FBI who specializes in high risk operations within US territory. Like tracking down serial killers for example. She is extremely vigilant, down to the smallest detail, her deduction skills are second to none. She is a good negotiator being able to talk down bombers and other suspects the FBI wouldn't dare go after. Ella has sources for everything. Ella always gets her suspect. Ella is especially good when she starts to think like the suspect especially killers. She goes into their minds with hypothetical analysis go pick up patterns in the killer she is going after. Ella is stubborn and brash, often bulldozing through local law enforcement because she has the authority to. Her agency reports directly to the white house.