The upcoming season of Current TV’s award-winning documentary series “Vanguard,” is premiering on June 20, and new episodes seem interesting, including ‘Gateway to Heroin,’ ‘Sex, Lies & Cigarettes’ and ‘Sushi to the Slaughter.’ As I said, the new season of “Vanguard” premieres on Monday, June 20 at 9pm ET immediately following the series debut of “Countdown with Keith Olbermann.”

But I have here also some video sneak peeks and spoilers of what´s to come.

Video Spoiler: ‘Gateway to Heroin’: Vanguard Sneak Peek

In this sneak peek from Vanguard’s season five premiere episode, “Gateway to Heroin,” correspondent Mariana van Zeller investigates the link between heroin and prescription drugs, learning that many addicts consider heroin a cheaper and more potent alternative to OxyContin.

“Gateway to Heroin” premieres Monday, June 20 at 9/8c on Current TV.

Video Spoiler: ‘Sex, Lies & Cigarettes’: Vanguard Sneak Peek

In this sneak peek at Vanguard’s “Sex, Lies & Cigarettes,” correspondent Christof Putzel goes undercover at the 2010 World Tobacco Conference to hear tobacco company employees speak honestly about their products and business.

“Sex, Lies & Cigarettes” premieres Monday, June 27 at 9/8c on Current TV

Video Spoiler: ‘Sushi to the Slaughter’: Vanguard Sneak Peek

In this sneak peek at Vanguard’s “Sushi to the Slaughter,” correspondent Adam Yamaguchi reports on the massive sale of Bluefin tuna at an auction at Tsukiji, the world’s largest fish market, located in Tokyo.

“Sushi to the Slaughter” premieres Monday, July 11 at 9/8c on Current TV.

What do you think? Will you watch Vanguard on Current TV? Let me know in the comments section.
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