Why does the crew's joy shift to horror?

The crew's joy shifts to Horror as they encounter an unexpected and terrifying situation that threatens their safety and well-being. This sudden change often stems from a realization of danger, betrayal, or the loss of control over their circumstances. The contrast between their initial excitement and the impending doom creates a heightened sense of fear, leading to panic and despair. Ultimately, the crew's sense of security is shattered, plunging them into a nightmarish reality.