The marine oil pipe connecting Israel and Turkey explodes during its inauguration ceremony. The immediate suspect is the Hezbollah organization, which has threatened Israel under the claim that the pipe runs through territorial waters belonging to Lebanon. Eitan – the investigator from Season 1, is called upon to supervise this extremely sensitive case.
Shin Bet investigators are sent to the suspects' homes and, when those they are seeking are not found there, they investigate the surprised families. We soon discover that even the best of families have lies and secrets to hide.
The lives of three families are turned upside down overnight. Dikla is released under house arrest, and is sent to the home of her parents in Ramat Eliyahu. Mika is fired from her job at the Ministry of Health and her belongings are confiscated. Sagi tries to cope on his own with the preparations for his daughter Shira's Bat Mitzvah, and with the nagging suspicion that his wife is having an affair again. Simultaneously, the Shin Bet Ops Room tries unsuccessfully to locate Anat and Amir.
While trying to help Dikla, Miriam gets in trouble and is abducted. Meanwhile, in Ramat Eliyahu, the mutual concern for Miriam thaws the chill between Dikla and her father as they break an eight year silence. Amir, who's escaped from the army, crosses the Green Line back into Israel, disguised as a construction worker.
Anat and Amir discover there's another suspect – Dikla Levi. They try to find out who she is and what she had to do with the explosion.
Anat goes to the hospital in disguise to visit her wounded son. Sagi confronts her and calls Eitan. Meanwhile, Amir breaks into Miriam and Yosef's house in Ramat Eliyahu and tries to question Dikla.
The Minister of Energy comes to the Ops Room and claims that the contract Eitan received is phony, and demands that Amir and Anat be caught. When she leaves, Eitan tells Gafni about his theory regarding the involvement of the suspects.
Sean tells his girlfriend Lenny that today they will finally get the money he is owed and they can fly to Australia. Jo presses Dikla to go to Cyprus right away.
Eitan questions Jo and brings her into the Ops Room. He demands the release of Anat and Amir and confronts Gafni. Eli questions Jo to find out who she and Sean are working for, but before he gets an answer he receives a strange order from Gafni to release Jo and then Anat and Amir.
Anat, Amir, and Eitan join forces in an attempt to catch Sean, and Anat is sent to a clinic to talk to Lenny, Sean's girlfriend, as Amir waits outside.
The Iranian Defense Minister is abducted in Moscow in a covert operation that is attributed to the Israeli Mossad. Five Israeli civilians wake in the morning and discover that their passports have been used by the abductors.
The four suspects - Ben Refael, Anna Lipman, Natali Alfasia and Asia Brindech - are being investigated by the Shin Bet, in order to determine their involvement in the abduction of the Iranian minister. The fifth suspect, Shawn Tilson, tries to avoid capture
The four detainees are being released home but remain under surveillance, all while the Shin Bet don't believe them and the people close to them start to get suspicious. What are they hiding?
Natali is arrested once again. She cooperates with Eitan, the Shin Bet team leader and tells him everything. Asia discovers the truth about her connection to the case.
With the noose tightening around their necks, the suspects make a critical decision that will change everything.
Benny and her mother try to evade the Shin Bet in order not to be extradited to Russia, aided by Yuval, Natalie's fiancé.
The tension between the group members, who hide in a hut in the desert, reaches a climax. Eitan returns to Israel and manages to crack the thread connecting the suspicious characters. Who really is connected to Sulaimani's kidnapping?
The group members confront Sean, who realizes that he has been exposed. Eitan arrives at the Mossad chief, Sayag, and reveals who is responsible for the abduction. The mystery is solved - how will it end?