The SWAT team goes in hot pursuit of a cunning sniper targeting the Los Angeles Fire Department, drawing his quarry by setting fires around town to lure unsuspecting engine companies, in the new episode "Under Fire." Meanwhile, the rivalry between Chris, Street and Tan (Lina Esco, Alex Russell, David Lim) gets more intense after Tan finds out there's an internal betting pool as to which of them will be named SWAT leader. Shemar Moore, Jay Harrington and Laura James also star.