Gail Carson was sent to Salem on an ISA mission to stakeout Reverand Saul Taylor's revival camp. Gail posed as an anesthesiologist at the hospital where she met and began dating Marcus Hunter. Gail helped Marcus try and learn the truth about his past but ended up with a warning from Marcus' aunt that he could never learn the truth about his parents.
Gail helped her partner Shane Donovan infiltrate Saul's camp as Brother Daniel. Both were on the trial of a arsonist who they believed was Saul Taylor. They soon learned that Saul and his partner Jericho were not only responsible for many church burnings but where also using the camp to fence stolen property. Eventually Jericho killed Saul to keep him quiet, and Jericho met his end when he and Shane fell over a cliff during a fight.