Department of Defense General John Acosta recruits MacGyver to steal a highly classified project from a military lab in order to find flaws in its security. But when it's discovered that the general is planning an attack using the weapon, Phoenix must stop Acosta before the weapon is uploaded.

As MacGyver works quickly to rescue survivors from a collapsed building in Germany, he discovers a new safety threat – a 1,000-pound undetonated bomb from World War II hidden beneath the rubble.