After meeting her unconventional roommates, Mia attends her first class with Dr. Lorenz and cozies up to the professor's research assistant, Jasper.

Mia tries to wheedle her way into a job at Dr. Lorenz's biomedical institute but runs into a problem when she's asked to participate in a genetic study.

Mia's night out with Jasper leads to Dr. Lorenz's private residence, where a medical emergency complicates her plans to access the professor's computer.

Dr. Lorenz's growing suspicions cause Jasper to question his relationship with Mia, who finds a new confidante in her desperate search for answers.

As Mia makes a last-ditch effort to obtain proof about Dr. Lorenz's experiments, Jasper begins to unravel over his feelings of betrayal.

On the run and with time running out, Mia turns to her friends for help in a life-and-death race to save the train's passengers.