On the eve of his retirement, police internal affairs investigator Izzy Bachar learns that his friend, Barak, a senior police officer, has been accused of corruption.

Izzy doubts the allegations against Barak as the bodies continue to pile up; Ronit plans an operation; Izzy convinces Tania to file a civil suit.

Tal Ben Harush is assigned to the IAD task force against her wishes; IAD and Barak's crew search for Eliran Hen.

The IAD task force regroup following Eliran's mess of an escape, with a new plan to find Ruslan; Izzy discovers the truth about Barak.

After raiding the Rishon LeZion police station, the IAD team question Barak's men about Ruslan's disappearance.

The recently widowed Barak is on the edge of a promotion and will gain command of the Rishon LeZion station.

Some solid intelligence work by Tal and Izzy land the IAD task force some wins against Barak, but they don't realise Barak has the Central District Attorney working for him.

As the IAD task force prepare for a raid, International Crimes take over and arrest Leibo's co-conspirator Imad.

When Eliran is arrested by Ukrainian police, Izzy and Tal are tasked with convincing Eliran to testify; the plan to raid the ammo containers gets a second chance.

Izzy struggles with his separation; Tal tries to process her unwanted pregnancy; Ronit's raid finally goes ahead.