A teenage boy (Ian) is afraid of heights, but when he believes that he has a guardian angel, Mark is sent to investigate. But Song Li and Mary discover that people who see their guardian angels have their guardians fade away after a while. And in a dangerous attempt to fight his fear of heights, Ian's guardian fades away, and Mark must help him get across a pole high in the air without his guardian.

A young boy called Ben goes out searching for his lost dog and he goes through a wormhole to another dimension and finds his dog in this dimension. He ran home to find a woman and a girl claiming that the dog was theirs. But because something from another dimension was in that dimension, the world begins to be swallowed up. To save the world in both dimensions, Ben, Mark and Song Li have to retrive the dog.

Mark and Mary go to a farm where a plane mysteriously went out of contact for a while and then came back in contact later on. While out in the yard, the farm's owner, Neil Goodson, digs up a rock and the five people on the farm are sent back in time to when Mark and Mary were invited into the house. Mark and the owner's daughter, Becky, notice the time loop, and if they don't stop the loop in time, time could destroy everyone on the farm.