This requires messing with the Date & Time setting on your device. Without any apps open, go to Open Settings and toggle Wifi off. Then go to Settings, General, Date & Time, and set the Set Auto Toggle OFF. Set it a few hours later and open Knight Storm. Then, go to Castle to find that your stuff is full and says "Time has been disrupted, Need Internet". Now double-click Home to open Multitask, go to Settings, and toggle Wifi on. Once done, go OPEN KNIGHT STORM FROM MULTITASK. You can then harvest everything this way.