In what's surely one of the most expensive television series in history, FOX today released a new promo for "Terra Nova," the ambitious time-traveling science-fiction drama that's coming to the network this fall.

If you haven't heard of it, don't worry — FOX is likely to inundate the airwaves with promos for the series leading up to the premiere. It's an understatement to say that there's a lot riding on this one, in particular due to the 13-episode season having a budget of more than $4 million per episode. The two-hour season premiere alone is reported to have cost more than $16 million and used more than 250 sets. 

The main reason for all that cash is that this series will be a special effects tour de force, rivaling anything we've seen on the small screen before. It's one of the main reasons the show was delayed for more than a year — and a big concern for those who say FOX may have bitten off more than it can chew if ratings justify a second season. 

"Terra Nova" begins in the year 2149, in a time when our planet is overdeveloped, overcrowded and overpolluted. The new scenes in the preview below present a future not unlike the one Ridley Scott showed us in "Blade Runner." It's dark, technology has replaced nature, and the air is no longer safe to breathe without a mask. 

According to a synopsis, scientists place their last hope in a time portal that can send a small number of "colonists" back in time (85 million years to be exact) and hopefully correct the mistakes of the past. Placing that logic aside (humans appeared on the scene only 200,000 years ago), the series follows one family and their experiences living in the prehistoric colony which — and this is important for ratings — happens to sit smack dab in the middle of a group of carnivorous dinosaurs. 

Think "Jurassic Park" meets "Avatar."

Check out the new preview below: