The charge will passively depolarize the adjacent node of Ranvier to threshold, triggering an action potential in this region and subsequently depolarizing the next node, and so on.
Each node of Ranvier is flanked by paranodal regions where helicoidally wrapped glial loops are attached to the axonal membrane by a septate-like junction.
The action potential only moves in one direction, because the sodium channels at the previous node of Ranvier are inactivated, and can not regenerate another action potential, even when depolarized.