4th and Forever: Muck City (2020)

S5E12 Map of the Mind

The Sliders find themselves in a chaotic mental hospital engulfed in an unexpected uprising. While Rembrandt and Maggie evade being caught, Diana and Mallory are separated from them. Mallory cleverly disguises himself as a physician, but Diana is wrongly identified as a patient and subjected to a procedure that attempts to alter her brain's mapping.