While saving two people clinging to trees in the rain surged Los Angeles River, a rescuer was swept away by the strong current. Another rescuer rushes down the bank and tosses his partner a rope and rescues the rescuer.A nasty storm hit Southern California and has damaged at least eight homes, led to a number of mandatory evacuations in Los Angeles, Ventura and Orange counties, and left tens of thousands without power.The storm, which began Thursday night, brought heavy rain, strong winds, rock slides and debris flows to the area overnight.A stretch of Pacific Highway has been shut down in both directions because of a mudslide, and street flooding in the Sepulveda Basin led to multiple road closures.