New 'Game of Thrones' Season 3 Trailer: Dragons, Direwolves, and the Coming Darkness [Video]

"Game of Thrones" Season 3 premieres in just a dozen days (yes, we're counting the days … minutes … and seconds!), and HBO is stoking fans' fervor with a new trailer featuring more action-packed footage.

The first trailer gave us a glimpse of Daenerys Targaryen's baby dragons, but the second one shows us just how much they've grown -- and what havoc they can wreak.

Here's our second-by-second breakdown of the sneak peek:

0:02 - A small dragon flies over the ocean.

0:07 - On a ship, a waiting Daenerys Targaryen and Ser Jorah Mormont look up.

0:13 - Tyrion Lannister looks at the reflection of his scarred face in a mirror. "How long does it go on?" he asks.

0:15 - "Until we've dealt with all our enemies," replies sister Cersei.

0:16 - Robb Stark looks grim.

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0:20 - Shots of Dragonstone Castle, Tyrion, and the new King's Hand, his father. "Seven kingdoms united in fear of Tywin Lannister," Tyrion says.

0:25 - A group travels in a snowstorm. An unidentified speaker intones, "The Night's Watch can't stop them …"

0:27 - Beric Dondarrion and Sander "The Hound" Clegane clash swords. An army rides through the hills. "Kings and their armies can't stop them."

0:31 - Stannis Baratheon, either behind bars or talking to someone behind bars, warns, "The darkness will devour them all, unless I triumph."

0:34 - An army comes to attention. Ser Jorah approaches Daenerys. Stannis continues, "We do not choose our destiny …"

0:36 - A shot of Jon Snow, followed by a shot of the Wildlings' camp. "We must do our duty now …"

0:39 - A shot of Melisandre. "Great or small, we must do our duty …"

0:40 - Brienne and Jaime Lannister clash swords on a bridge.

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0:42 - Daenerys looks over her army, then meets with an unknown man. "Explain to me how you propose to defeat us," she says. One of her dragons bursts out of the ocean.

0:46 - Joffrey in a snit: "I am the king!"

0:49 - Joffrey leads Sansa, holding his arm. "Everyone is mine to torment," he yells.

0:52 - "I shall show you no mercy," Daenerys warns, over flashes of her army.

0:55 - A shot of Harrenhal. "Take his home, take his gold, take his power," Robb Stark tells his mother Catelyn. "If we don't do this, and do it now, we're lost."

1:00 - "We're finally going to war," a wildling warrior says. Ygritte aims a bow.

1:02 - Mance Raydar: "I'm going to light the biggest fire the North has ever seen!"

1:05 - Flashes of: Robb kissing Talisa; the wildling raider pick-axing his way up the Wall; Night's Watch Commander Mormont drawing his sword; Jon kissing Ygritte. Someone says, "I forbid you to die!"

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1:08 - Stannis grabs Melisandre's arm. Jon Snow tells someone, "Big men fall just as quick as little ones." A direwolf snarls.

1:12 - Bran Stark wakes suddenly. He and Hodor anxiously watch someone approach. A woman says, "Do you hear the screaming ..."

1:14 - A shot of Margaery Tyrell. "The crying for their gods?"

1:16 - A barrage of flashes, including: Jorah fighting off soldiers; dirty, disheveled Jaime and Brienne; a startled Arya looking up.

1:22 - Daenerys, holding one of her dragons on a leash, lets it fly. The dragon breathes a ball of fire.

"Game of Thrones" Season 3 premieres Sunday, 3/31 at 9 PM on HBO.