S3, E19: As the Sliders escape from a jungle world where flying parasites are swarming over them, Maggie (Kari Wuhrer) is attacked by one. Quinn (Jerry O’Connell) rips it away, and they slide to the next world, where Maggie collapses with green foam bubbling from her mouth. Paramedics soon arrive on the scene, blasting Maggie's body with frozen nitrogen. Now in suspended animation, they take her away to a hospital where Dr. Sylvius (Dawnn Lewis) is put in charge of the frozen Maggie.