We describe a patient who sustained a penetrating injury to the posterior right lower extremity just above the popliteal region with transection of the superficial femoral artery (SFA) despite minimal evidence of active bleeding. An on-table angiogram identified flow in the SFA followed by the popliteal artery and into the trifurcation of the right lower extremity. Eventually, a second operation revealed transection followed by end-to-end anastomosis of SFA and stabilization of the patient. The findings of this case highlight the need for a high index of suspicion and persistent clinical investigation to identify vascular injuries in the absence of hard signs of vascular trauma.