Part 3/9:
As the bus ventures deeper into an eerily dark tunnel, Tony is met with an unexpected confrontation—a mysterious man emerges out of nowhere, later identified as Chan, the newest passenger on board. Lee's discovery of Chan's criminal background fuels paranoia, leading him to secretly arm himself with a knife for protection.
Yet, as time stretches thin in the confines of the tunnel, panic escalates among the passengers when they find themselves lost. Despite having driven through supposed exits, they realize the tunnel operates in an endless loop, warping their sense of space and time. Their attempts to retrace their steps become futile, leading to the ghastly realization that their environment might not only be confining but lethal as well.