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Lisa LaFlamme writes about her surprisingly candid interview with once-powerful media mogul Conrad Black -- watch it this Saturday at 7pm ET on W5 in a special one-hour season premiere.

When Genie and Helmut Vollmer's accountant introduced them to a new investment opportunity, they had no reason to doubt their financial advisor and friend of 30 years.

It's not often you meet the mayor of a city who is as popular in other cities across Canada as he is on home turf.

W5 examines how the Golden Gate Funds promised huge financial returns, but was apparently a Ponzi scheme, resulting in devastating financial losses for unsuspecting Canadian investors.

While reporting W5's documentary about Canadian air racer Pete McLeod, reporter Victor Malarek took to the skies aboard one of the race aircraft to see what it's like to soar at nearly 400 kilometres an hour.

Hassan Rasouli, an electrical engineer, brought his family to Toronto from Iran, in the spring of 2010. Five months later, what was supposed to be routine surgery for a benign brain tumor, left Hassan unconscious. Bacterial meningitis had infected his brain.

Gloria Steinem is an American writer, a lecturer, and co-founder of MS magazine. She's one of the leading figures of the women's movement and helped bring feminism into the mainstream consciousness thanks to her good looks and popular writing.

W5 joins an underwater archeology mission to solve a 160-year-old mystery that lies at the bottom of the Arctic Ocean.

Even casual news viewers will recognize CTV's chief political correspondent when he appears this week on W5. Craig Oliver's commentaries out of Ottawa bring novel insights and crackle with enthusiasm and good humour. He's a man who takes his work seriously, but never himself.

W5's 10-month investigation of Caron Oderbien, a grifter who has left a trail of broken hearts and empty wallets across five provinces and two countries.

They are disturbing images: police officers kicking, hog-tying, maiming suspects and, sometimes, innocent citizens. Captured on surveillance videos and by cellphone cameras. CTV's W5 looks at cases in Victoria, where it seems no matter how damning the evidence, the officers involved get off with few penalties.

W5 investigates the Navy's floundering submarine program. Nearly $1 billion was paid for the boats, and Canadians can expect to spend even more in the future for a program that still isn't fully operational, 15 years after the purchase.

The baffling disappearance of Mariam Makhniashvili sparked an unprecedented police search and has left many lingering questions about her family. W5 takes an in depth look at the mysterious, unsolved case of the Toronto teenager.

I'm excited to remind everyone that our full year-end interview with Prime Minister Stephen Harper, plus a lot more with his family, airs tonight. You can watch it on CTV at 7 p.m. local time in most of the country, except in Manitoba and Saskatchewan where it will air at 10pm.

W5 goes undercover to investigate risky laser treatments and exposes misleading sales pitches and questionable training. As these high-tech treatments have become more prevalent, so have patients' horror stories.

A new proposal in the United States would retire nearly all of the chimpanzees that are being used in federally-funded research. It is sure to rekindle the debate about whether our near cousins from the animal kingdom should be used in research at all.

Hassan Rasouli, an electrical engineer, brought his family to Toronto from Iran, in the spring of 2010. Five months later, what was supposed to be routine surgery for a benign brain tumor, left Hassan unconscious. Bacterial meningitis had infected his brain.

The killing of the ocean's most graceful creatures -- dolphins, whales and seals -- motivates many animal lovers to object but few are willing to go to the lengths of Canadian environmentalist Paul Watson.