Michelle has to return off of maternity leave to save her reputation. A serial killer is imitating crimes already committed.
A former colleague returns to the team and jeopardizes the success they have just achieved.
The team investigate the abduction of a ballerina.
The IIB are called in after a successful video game developer and former friend of Dev's is found dead just before the release of a new video game he has been working on.
When a psychiatrist is murdered, Toby finds it hard to deal with a mentally compromised suspect.
Toby and the team take a look at the case of the poisoning of a cooking show contestant on live television.
A mayoral candidate is investigated by the team after a murder is committed.
After a neighbour of Oz's is murdered, the IIB team find out that he was behind a legendary coin heist and they need find the treasure to catch the killer.
Toby thinks more about his missing family when he investigates a murder involving arguing siblings.
Toby is drugged and loses his memory, soon finding himself implicated in a armed kidnapping.
Toby goes undercover as a prison inmate, as he's convinced someone is saying they are guilty of murder when in fact they are innocent of the crime.
Becker's involvement in a criminal conspiracy is investigated by Toby, Michelle and Dev.