Is Tunn is coming back?

A research vessel is being attacked outside of Greenland at the same time as the Arctic the council is trying to agree on prohibiting environmentally harmful oil drilling in the region. Behind the agreement are Sweden's Foreign Secretary Elsa, whose political adviser Viktor is on board on the attacked ship. The attack puts Elsa's agreement in the swing and at home Sweden starts a fight against the clock for SÄPO agent Liv who is pregnant with Viktor's baby.