with him, but Mack rejects her, telling her the one night stand was a mistake and he doesn't want to risk losing his marriage over it. She attempts to get revenge by contacting a reporter and telling him about the Unit. The reporter starts poking around the base, trying to learn more about Mack to try and build a story, but is quickly shut down once SGM Blane gets involved. He has the reporter arrested, which leads to the discovery of (possibly planted) top secret documents in his car. He then threatens to send him to Guantanamo Bay, Cuba as a national security threat. Ultimately, after convincing the reporter that Crystal is psychologically unstable (with fake medical records), he gives him the option to drop the story and leave for good. After this defeat, Mack convinces Crystal to also leave the base for good, which she does as she has no interest in taking care of her disabled fiancée. At the end of the second season, Gerhardt and Williams were placed in prison for unnamed actions which they committed on a mission. Brown manages to escape this fate by becoming a double agent to the CIA; while Grey disappears and Blane goes into hiding. At the start of the third season, Gerhardt was brutally tortured by the CIA, but later released soon after other team members threatened members of the CIA. Like Jonas, he uses a customized Colt .45 as his sidearm, he is obviously a fan of the weapon, complimenting Bridget Sullian for using one and recommending Sam McBride do the same. His off-duty gun is a Colt .32 pistol and he also has a Smith & Wesson .38 'throwaway gun'. In many ways Mack is the toughest and most ruthless member of the Unit, never hesitating to kill in cold blood and even going undercover as a bare knuckle fighter. His weak spot is his volatile relationship with Tiffy. Mack was nearly dismissed from the Unit several times due to their behaviour. When Mack suspects that Tiffy is having an affair with a lawyer she has been working with, he obtains an untraceable gun and plots to kill him. When he finally discovers that she has been having an affair with Colonel Ryan, teammate Bob Brown has to physically restrain him from killing the Colonel. He later tries to kill Ryan while on a combat mission but eventually