With the aid of modern technology, the unknown behavior of some unusual species of shark—lemon sharks and their white-tip reef counterparts—is revealed. Our film trip begins on the Bahamas—to be more precise, in the turquoise-blue waters of the Grand Bahama Bank, in an exactly fixed location. In the spring, 70 to 80 pregnant lemon sharks arrive here. This huge shark population was first discovered just a few years ago by shark researcher and professor Sam Gruber. Many of the females are tired and rest on the seabed. Pregnant tiger sharks swim in the midst of this group. Without any protection whatsoever, our cameramen shoot their footage, surrounded by sharks, and succeed in capturing images hitherto unseen….