Though their latest slide has thrust Quinn (Jerry O'Connell) and Maggie (Kari Wuhrer) headlong into a raging battle, Rembrandt (Cleavant Derricks) and Colin (Charlie O'Connell) apparently emerge from the experience with no difficulty whatsoever. Once the four travelers are reunited, Quinn and Maggie suddenly begin to grow older and sicker, ending up on the verge of death. While the two afflicted Sliders are quarantined in the Chandler Hotel, Remmy and Colin are confronted on the street by a spectral figure (David Dukes) who claims to be Thomas Mallory, Quinn and Maggie's son from a parallel universe. These curious events lead to an extremely grim prognosis for all four of the principal characters. ~ Hal Erickson, Rovi