Meaning of the expression including "stuck"

In the passage below, I think the underlined part can be understood in two ways. My confusion is due to the word “stuck”. Could you tell me which way is better understanding?

First, Dodge couldn’t move because his feet got stuck somewhere on the ground.

Second, Dodge couldn’t move for some reasons such as a fear of fire reaching him in a minute.

Realizing the pressing danger, Captain Dodge told his men to drop their heavy tools and run. It seemed all they could do to survive was run to the ridge. While the men were running up the valley, however, Dodge stopped running. He watched the fire burn closer and closer to them with his feet stuck on the ground. It was less than 50 yards away. He realized that they would not be able to run faster than the fire even if they ran as fast as they could.

Thank you in advance.