Taking Time

A seismic event occurs as the Stewart family is taking an evening out at a pub in Wells, Somerset. When they return to their home laboratory, it is discovered that time has shifted back almost two seconds when the family compares the conventional clock and the laboratory computer’s clock. Akiyoshi Stewart suggests that the time difference is actually a result of a tear in the fabric of space-time. Later that night, the security alarms are triggered by an intruder wearing a military-type masking suit. Are these visitors human or aliens, and what do they want?