A vigilante known as Kizil Maske, or the Red Mask (Atasoy) must stop crime lord Al Kapon (Yildirim Gencer) acquiring a genius professor’s formula for rapid plant growth.

The first sequel to KILINK ISTANBUL'DA picks up right where the 1st installment left off. Superman manages to locate Kilink's hideout on a remote island where his fiancé and her father are being held behind bars. Meanwhile, Kilink's scientists finally manufacture a lethal destructive canon-like weapon that is able to blast away even portions of mountains.

Kilink visits Istanbul to grab a destructive formula which is in the hands of an once-collaborate scientist, Professor Houloussi. He murders him, kidnaps his daughter, tortures her in some gloomy dungeon, and then kidnaps more people and tortures them but still, the formula remains hidden. Meanwhile, the son of Professor Houloussi is blessed by a Devinne spirit and turns into Superman! But will he be a worthy opponent to the unbeatable and evasive master of all criminals, Kilink?