Roll and Rock

Plot
Duncan is rock 'n' rolling along the line, which shakes the ground and causes a large rock to break loose and tumble into the line. Rusty, who is working nearby, rushes to warn Duncan of the rock. Duncan stops in time, but is worried that he'll have to go back, but Rusty says that they can push the rock off the rails and continue on.

Featured Characters

 * Duncan
 * Rusty