National Geographic Canada HDTV (NGCHD)

(Repeat).

The team reveals the greatest secrets in the lives of the humpback whale. (Repeat).

The team is in the Azores to tag a deep-sea giant — the sixgill shark. (Repeat).

In the mid-Atlantic, the team tracks down sperm whales and its prey. (Repeat).

The team meets two of the world's oldest mammals in the Arctic. (Repeat).

A car's radiation levels alert CBP; an officer digs up a stash of deadly bath salts; and multiple phones materialize. (Repeat).

(Repeat).

A faceoff develops over luxury counterfeits; agents detect potentially lethal powder; and a CBP beagle finds the motherload of meat. (Repeat).

(Repeat).

After nonstop wild weather, it appears the winter roads want revenge. A bump in the road takes out Art's radiator and causes a coolant crisis, while a tight turn snags Todd's rig in a deep snow bank. Steph regrets her foray onto a wet ice crossing. Meanwhile, Alex moves a construction shack that might be too heavy for the ice, so the veteran trucker uses a steel sled to drag the huge haul across a

The National Maritime Museum in London is explored. (Repeat).

A big contract is signed, but it puts pressure on the mechanic as the plane is prepared for flight. (Repeat).

A car's radiation levels alert CBP; an officer digs up a stash of deadly bath salts; and multiple phones materialize. (Repeat).

(Repeat).

A faceoff develops over luxury counterfeits; agents detect potentially lethal powder; and a CBP beagle finds the motherload of meat. (Repeat).

(Repeat).

CBP discovers an SUV that is loaded with meth. AMO seizes almost 2000 kilos of cocaine. (Repeat).

CBP confiscates $500K worth of coke; HSI catches an importer of illegal pills. (Repeat).

CBP & HSI track 25,000 ecstasy pills bound for Philadelphia from Germany. (Repeat).

A significant drug bust unfolds as the team seizes 100 kilos of cocaine hidden in a shipment of bananas destined for a Philadelphia bodega. (Repeat).

In this enhanced episode, CBP detains man suspected of swallowing drugs. (Repeat).

HSI in LA starts some undercover drug buys; CBP stops Coyotes at the border. (Repeat).