A country lunch turns deadly when three die from death cap mushroom poisoning, sparking a murder probe that gripped the world.

While the police suspect a drug dealer on trial is behind the murders of the State's witness in his case, as well as his girlfriend, Patrick Jane sees a different motive for the crime - as well as a different suspect.

When an op goes bad, the team must deal with a proverbial monster in their house before it can take them down. Meanwhile, Director Weitz is forced into a game of psychological chess as Madeline Burke attempts to assess his loyalty and root out a potential FBI mole.

In order to stop a terrorist group from procuring a deadly chemical weapon, the team must remember key details from their first days at the FBI. Meanwhile, Weller worries after he gets scary news about the health of his daughter.

The Dwight Darnell murder investigation continues.

17-year-old Charlie Cosser is fatally stabbed by 16-year-old Yura Varybrus at an end-of-term summer party for teenagers.

When an op goes bad, the team must deal with a proverbial monster in their house before it can take them down. Meanwhile, Director Weitz is forced into a game of psychological chess as Madeline Burke attempts to assess his loyalty and root out a potential FBI mole.

In order to stop a terrorist group from procuring a deadly chemical weapon, the team must remember key details from their first days at the FBI. Meanwhile, Weller worries after he gets scary news about the health of his daughter.

The Dwight Darnell murder investigation continues.

17-year-old Charlie Cosser is fatally stabbed by 16-year-old Yura Varybrus at an end-of-term summer party for teenagers.

Emery and Joe are back in town, sending Stabler on a wild goose chase of false leads; playing both sides eventually catches up with Joe; Stabler and Emery end up being one step ahead of him, sending Joe closer to a fatal endgame.

While the police suspect a drug dealer on trial is behind the murders of the State's witness in his case, as well as his girlfriend, Patrick Jane sees a different motive for the crime - as well as a different suspect.

When an op goes bad, the team must deal with a proverbial monster in their house before it can take them down. Meanwhile, Director Weitz is forced into a game of psychological chess as Madeline Burke attempts to assess his loyalty and root out a potential FBI mole.

In order to stop a terrorist group from procuring a deadly chemical weapon, the team must remember key details from their first days at the FBI. Meanwhile, Weller worries after he gets scary news about the health of his daughter.

The Dwight Darnell murder investigation continues.

When the killer’s psychiatrist – and possible next target – comes into the station looking for protection, Alberg gets a window into the killer’s complex motivations... and becomes a target himself.

Emery and Joe are back in town, sending Stabler on a wild goose chase of false leads; playing both sides eventually catches up with Joe; Stabler and Emery end up being one step ahead of him, sending Joe closer to a fatal endgame.

While the police suspect a drug dealer on trial is behind the murders of the State's witness in his case, as well as his girlfriend, Patrick Jane sees a different motive for the crime - as well as a different suspect.

When Jane is shot and Weller is kidnapped, the team must fight to save both of their lives while maintaining the secrecy of their hidden base. Meanwhile, Weller is haunted by some dark ghosts from Blindspot's past.

When Ice Cream, the Icelandic fixer, returns to collect his debt, the team is forced into a life and death race around the world to solve a series of puzzles and recover the infamous stolen Gardner paintings.

A young woman is found dead in the LA River.

Firehouse 51 is called to an airfield when a passenger jet goes silent mid-air, triggering a high-stakes emergency and cracking open a bigger mystery that could put countless lives in jeopardy.

Dexter's sudden inability to deceive has him pursuing a slick liar as his next victim, while Rita believes he's concealing a drug problem and forces him into a 12-step programme where he meets the seductive Lila.

Rita finds herself threatened by Dexter's sexy new Narcotics Anonymous sponsor Lila, plus stressed by a visit from her estranged mother. Dexter tries to throw the dogged, intelligent FBI Agent Lundy off his bloody trail.

Patrick Jane suspects the only surviving member of a National Guard unit of murdering his friends - and goes undercover to prove it.