Here’s the official blurb
and here’s the clip: make of it what you will.
The rest of the team track McAllister and Zaryn to a training camp in the countryside. They save McAllister from being hanged and collect Zaryn. When their transport breaks down after eluding the first wave of enemies, Josef jams all communication. Believing her brother to be increasingly unstable, Rosa wishes to tell Section 20 everything she knows about Lowry in exchange for her safety. Meanwhile, General Lázsló shuts down Section 20, forcing Donovan to work in secret. She discovers that Zaryn is in fact Karim Markov, a Russian scientist who allegedly killed his colleagues with Novichok, a nerve agent they invented. The rest of the team arrive at a building to deactivate the signal jammers and alert Donovan, who drives with Jensen to pick them up while the rest engage Magyar Ultra. In the process, Josef and Rosa are killed. After they escape, Donovan is forced to hand Markov over to General Lázsló under Whitehall’s orders. However soon after, Lowry ambushes and kills the Hungarian soldiers before kidnapping Markov.