Fringe: Season 2 takes all of freaky occurrences of the first season -- including rapidly aging babies and women turned into bombs -- and ties them into a not-so-neat package full of shapeshifters and parallel universes. When missing brains and buildings enter the mix, the team of Dr. Walter Bishop, his son Peter, and FBI agent Olivia Dunham, soon discover how thin the line is between this world and the next. Part X-Files and part Twilight Zone, Fringe tackles old sci-fi staples of teleportation and mind control while adding creepy, bald Observers who watch as it all goes down.