Dwayne Barnes

The murder of an assistant DA leads to a psychopathic hit man, but the case against the killer falls apart at trial when Jane's unorthodox methods are challenged by the defence.

Monk takes a new medication that alleviates the symptoms of his obsessive-compulsive disorder, but impairs his ability to solve crime.

Warrick must overcome vindictive feelings when investigating a drive-by shooting in his old neighbourhood, and Nick cannot find witnesses to a murder at an Internet company.

When Jada, the woman Sam brought from Sudan to America four years ago, goes missing, the team begin a desperate search.

Dr Weaver fears her relationship with Dr Legaspi will become public when a patient accuses her of sexual harassment, and Abby searches for a stolen baby.

In the series four finale, there are shocking consequences when an old photo prompts Nate to contact Lisa's family. Meanwhile, a desperate Rico begs for forgiveness.