Jack and Conner are drawn back to Marbury to rescue other friends and attempt to destroy the lens that transports them to the alternate world.

Sixteen-year-old Jack gets drunk and is in the wrong place at the wrong time. He is kidnapped. He escapes, narrowly. The only person he tells is his best friend, Conner. When they arrive in London as planned for summer break, a stranger hands Jack a pair of glasses. Through the lenses, he sees another world called Marbury. There is war in Marbury. It is a desolate and murderous place where Jack is responsible for the survival of two younger boys....