Kail discovered that killing Frick was an effort by Susan to find a mole in CTU Washington. They tracked the mole activity to Sutton's desktop, confirming him to be the mole. However, he as shot by analyst Kelly, the real mole, before Susan or Martin could stop her. Whilst trying to upload files to complete her plan, Kelly was stormed by Martin and Susan. Susan was shot in the shoulder by Kelly, but was successful in stopping her from transferring secrets to Navi Araz. However, Martin was shot in the stomach and collapsed in her arms.
Findings at CTU · Operation Hell Gate · Veto Power · Trojan Horse · Cat's Claw · Vanishing Point · Chaos Theory · Storm Force · Collateral Damage · Trinity · Head Shot · Death Angel · Deadline · Rogue · Trial by Fire