What does Stella do when Mack unties her rope?

When Mack unties her rope, Stella rushes toward the truck, knocks Mack over, and cuts herself on the ramp.

Stella pushes past Mack, nearly knocking him over. She rushes as best she can, limping heavily, toward the open back door of the truck. She catches her swollen foot on the edge of the ramp and winces. Blood trickles down.