Firestorm (Fansadox Collection 558)

In a secret Moscow laboratory, American super-soldier Kelly Cox is subjected to systematic sexual and psychological torture by Professor Vavilov and a Russian operative empowered by her own DNA. After her captors extract her powers into a vial, Kelly seizes a desperate chance to inject herself, feeling her strength surge back as she prepares to retaliate. However, she undergoes a violent physical transformation while her tormentors mock her, revealing they remain in control of the situation.