Submarine Found In Dried Up River, Workers Turn Pale When Seeing What’s Inside

What now

In the dark, Don, Kevin, and Carl contemplated their next move. They could almost hear each other’s hearts pound in their chest. “How do we get past them?” Don whispered nervously, eyeing the armed guards. Then Carl suddenly got an idea. “Listen, when you hear my signal, climb up as fast as you can,” he instructed in a low, determined tone. Don and Kevin look at each other in confusion. What signal?