Close Call

S2, E7: Disaster strikes when the school clock breaks and Elizabeth is forced to hide her lab equipment in the school storeroom or risk Mr Woods discovering her secret laboratory. A curious Jack accidentally locks himself in the storeroom and is zapped by one of Elizabeth's new inventions, causing his arm to go right through the door. Now Jack has direct and very personal experience of Wicked Science, but has no idea how dangerous it is as he begins to disappear. Working together while avoiding Mr Woods, Toby and Elizabeth return Jack to normal and release him, leaving a furious Jack attempting to explain the mystery of his behavior to a bewildered Mr Woods and a furious Ms. Hammer.