What is the plot?

What is the ending?

Is there a post-credit scene?

Why does Ae-seol decide to release the prisoner who appears sick in his cell?

Ae-seol decides to release the prisoner who appears sick because she is moved by his plea to deliver a message to his sick mother. He hands her a photo with his mother's number written on the back, and his apparent vulnerability and concern for his family touch her emotionally. Believing he is genuinely unwell and desperate, Ae-seol acts out of compassion and goes behind the group's back to free him, not realizing he is manipulating her.

What happens when the students give food to the prisoners at Yongwon Penitentiary?

When the students give food to the prisoners, the prisoners initially beg for their release and accuse the students of wanting to leave them to die. The students refuse to tell the prisoners about the outside situation and decide to finish their search for a radio or spare parts before returning to base. After feeding them, Ae-seol notices one prisoner is not eating or moving, which leads her to release him, setting off a chain of events where he frees the others and takes her hostage.

How does the prisoner manipulate Ae-seol into releasing him?

The prisoner manipulates Ae-seol by pretending to be sick and immobile, lying on his bed and not eating. When Ae-seol approaches him, he hands her a photo of his mother and asks her to contact her, appealing to her empathy. His act of vulnerability and his request for help with his mother convince Ae-seol to release him, not realizing he is faking his illness to escape.

What is the significance of the photo the prisoner gives to Ae-seol?

The photo the prisoner gives to Ae-seol is significant because it contains his mother's phone number written on the back. He asks Ae-seol to contact his mother on his behalf, which makes his request seem heartfelt and urgent. This gesture is what triggers Ae-seol's compassion and leads her to release him, not knowing he is using her empathy as part of his escape plan.

What do the prisoners do after they are released by Ae-seol?

After Ae-seol releases the prisoner who pretended to be sick, he frees the other prisoners. The group then turns hostile, taking Ae-seol hostage and threatening the students. The prisoners split up to search for the students, intending to kill the boys and harm the girls, but their plans are interrupted when the alien spheres attack, leading to their eventual demise.

Is this family friendly?