Employee 1 was elevated inside of a scissor lift resetting an underhung crane. Employee 2 was at ground level assisting Employee 1. Employee 1 reset the crane and the crane traveled toward Employee 1. The hook on the crane struck the guardrail on the scissor lift and knocked the scissor lift over. Employee 2 was in the path of the scissor lift and was struck by the cage. Employee 1 was rendered unconscious. Employee 2 suffered a broken pelvis, knee, foot, and ribs. Both employees were hospitalized.