In a small town in Oklahoma during the 1970s, a young and brave worker named Karen Silkwood finds herself trapped in the complicated and dangerous world of the nuclear industry. Employed at a plutonium fabrication plant, her life takes an unexpected turn when she begins to suspect that her workplace is rife with negligence and safety violations. As she delves deeper into her job, Karen discovers that her health and that of her coworkers are in serious jeopardy due to exposure to toxic materials.
Driven by a sense of justice and desperation, she decides to investigate and gather evidence of the plant's dangerous practices. However, her quest for the truth not only puts her in danger but also her friends, adding even more tension to her struggle. Karen becomes a symbol of resistance, confronting not only her employer but also a system that seems to protect corporations more than individuals.
As she navigates threats, betrayals, and the constant pressure from those who want to silence her, her path to the truth turns into a matter of life and death. Over time, her bravery captures the attention of the media, but the cost of her courage is high. The story is a powerful reminder of the individual fight against injustice and the sacrifices necessary to expose the truth, embarking on a journey that will transform her life forever.