When the BBC documentary series Planet Earth was first released in 2006, its impact was immediate and far-reaching. In addition to providing us with an unprecedented and vivid look at animal behavior across all the major continents, it was also one of the first programs that helped jump-start HDTV sales.

Now, 10 years later, the second installment of Planet Earth II is just around the corner. Slated to air later this year (a premiere date is still unknown), Planet Earth II promises to be even more jaw-dropping than the original. Filmed in stunning 4K, the documentary series will feature the narration of David Attenborough.

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An extended trailer for Planet Earth II was released earlier today and, suffice it to say, it’s an absolutely mesmerizing teaser for what promises to be must-watch programming.

Interestingly enough, the upcoming documentary promises to deliver us more interesting angles of the animal kingdom than we’ve ever seen previously, thanks in large part to technologies that were simply not around or not affordable back in 2006, including 4K cameras, high-quality remote recording equipment, and of course advanced drones.

Planet Earth II has been in the works for about three years now and is reportedly the most expensive documentary ever filmed. It will air as a 6-part series.

Speaking to how big the production and scope of the filming process was, series executive producer said the following earlier this year: “[The] epic scale and ambition of this series is second to none. It will be a truly immersive experience, providing audiences with a unique perspective on the most extraordinary places and animals on our planet.”