En route, Dirgo’s shuttle malfunctions and they are forced to crash-land on the surface of a harsh, desert-like moon. Though they are unharmed, the shuttle is beyond repair, and its communication systems and food replicators are disabled. Dirgo admits he has no emergency supplies on board, so they are forced to search for shelter and water. With his tricorder, Wesley identifies some caves and a potential source of water some distance away, and the three set out across the desert. Reaching a cave, they find a fountain-like water source, but it is protected by a crystalline force field. Dirgo attempts to use a phaser to destroy the field, but this activates a burst of energy from the fountain which encases the phaser in an impenetrable shell and causes a rock slide; Picard pushes Wesley out of the way but is severely injured in doing so.