Shadow, Sassy and Chance are back! It's been three years since their trek through the woods and over the mountains...

Jackie, a cop, participates in a sting operation on an international spy-ring. But when one of them (Tsui) gets away, Jackie is ordered to apprehend him. This leads Jackie all over the globe starting with Tsui's sister in Australia. The story follows him as he tries to stay alive and capture the villain.

Terrorists take over a 747 bound from Athens to Washington D.C., supposedly to effect the release of their leader. Intelligence expert David Grant suspects another reason and convinces the military that the 'plane should not be allowed to enter U.S. airspace. An assault mission is devised, using a specially equipped 'plane designed for mid-air crew transfers, and Grant finds himself aboard the 747 with a team of military anti-terrorists who have to defuse a bomb and overpower the terrorists.

Trouble strikes when runaway robbers in a getaway car hit truck full of explosives in the tunnel connecting Manhatten and New Jersey. Survivors are left in a weakened tunnel blocked at both exits. As Kit Latura approaches the tunnel, he see the impact and knows he gotta take action. With time running out, he enters the tunnel through a system of maintenance walkways. Can he get the survivors out before the tunnel fills up?

Terrorists steal nuclear warheads from the US military but don't count on a pilot and park ranger spoiling their plans.