Corrected entry: When Logan and Jessica decide to return to the city, they go down to the bottom of a fountain where there is a little pool of water and jump in. When they and all the people from the city arrive back at the fountain, they arrive at the top where there is no way of exiting.
BocaDavie
7th Oct 2004
Correction: It's implied that the explosions blew a hole in the dome, allowing the people to escape.
BocaDavie ★