The Bochumer precinct ICT is taken hostage by a hacker, who threatens to reveal sensitive files, so cyber crime specialists Sanjay Kapoor and Björn Seibert from Düsseldorf takes charge from station administrator Ulf Becker, who already ordered IT lock-down. Heldt was the one who naively opened a trap attachment. Mario Korthals is nearly badly wounded next morning in the archive when a fire bomb destroys a file folder, Hole's new forensic assistant Linda Montgomery can pull him out just in time, but is also an obvious subject. Ulf Becker is shot-wounded while the backup server is stolen, so Grün enforces a physical lock-down with the culprit inside. Heldt sets elaborate traps to find and for plausible hackers, organizing a breakout helped by cab buddy Achmed.
—KGF Vissers