The team will hunt down a dangerous criminal who has murdered affluent citizens in the upcoming episode of the TNT series "Major Crimes."

In "Four of a Kind," TV Guide reports that the division will be facing an enigmatic case. Four wealthy people are found dead outside the emergency room in one of the hospitals in the metro. Following the trail of a pitiless killer, the investigation will lead them to four possible suspects.

The synopsis reveals that the squad will have to identify who among them is ruthless enough to commit several murders — a high schooler, a chauffeur suffering from diabetes, a proprietor of a parking lot, or a woman cloaked in mystery. Sharon Raydor (Mary McDonnell) and her team will set out to find out who has the motives to kill and apprehend him or her before he or she can take on another victim.

Meanwhile, Rusty (Graham Patrick Martin) will get busy in the upcoming episode. He will reportedly pursue a subject to feature in a story. The topic, however, is considered taboo, which can land him in trouble. Will all his efforts pay off in the end?

Last episode, the Major Crimes Division took on a sensitive case involving the murder of a judge's son. They had to dig into the public servant's caseload to look for clues that could lead them to the culprit. Virginia Ryan (Patricia Wettig) was as tough as nails when it comes to prosecuting criminals. Many of those she sent behind bars were livid with her and could not wait to get even.

It turned out, however, that it was not a felon who killed her son but her teenage nephew. It was revealed that Chandler (Jeff Campanella) had been molesting his two cousins Henry (Aidan Blain) and Sean (Nick Clifford) for years. Sean snapped when Chandler told them he liked what he did to them and bashed his head with a shovel.

"Major Crimes" airs Mondays at 9 p.m. on TNT.