Safety in Numbers
Join the other survivors.

Quest Giver: Class Trainer
Location: Gilneas City Military District
Recommended Level: 3-5
Quest Objectives: Talk to King Genn Greymane in the Military District
Rewards: 13 copper, 65 experience

King Genn Greymane is on a horse at the SE part of the Military District.

Old Divisions
Seek the help of Lord Darius Crowley.

Quest Giver: King Genn Greymane
Location: Gilneas City Military District
Recommended Level: 3-5
Quest Objectives: Talk to Captain Broderick at the Stoneward Prison
Rewards: 7 copper, 35 experience

While You're at It
Talk to Lord Godfrey (near the King) to get this quest.

Quest Giver: Lord Godfrey
Location: Gilneas City Military District
Recommended Level: 3-5
Quest Objectives: Kill 5 Bloodfang Worgen
Rewards: 40 copper, 190 Experience, Choice: Armstead Bracers (Leather, Wrist, 11 armor)/Merchant's Chestguard(Mail, Chest, 42 armor)

Kill the 5 Bloodfang Worgen on your way to the Stoneward Prison. Report back to Lord Godfrey once you've slain them all.

The Prison Rooftop
Find Darius Crowley

Quest Giver: Captain Broderick
Location: Stoneward Prison (Gilneas City)
Recommended Level: 3-5
Quest Objectives: Get to the rooftop of the prison and talk to Darius Crowley.
Rewards: 5 copper, 25 experience.

Climb the stairs to get to the rooftop.

By the Skin of His Teeth
You talk to Crowley, who asks you for help holding the Worgen back while they stabilize the wounds of one of his men who was injured.

Quest Giver: Lord Darius Crowley
Location: Roof of Stoneward Prison (Gilneas City)
Recommended Level: 3-5
Quest Objectives: Hold back the Worgen for 2 minutes.
Rewards:  Choice of Darius' Sash (11 armor/Cloth/Waist) , Dempsey's Gloves (18 Armor/Hands/Leather), Bracers of the Queen's Gate (23 Armor/Mail/Waist)

Once you accept the quest, lots of Worgen will attack. Help Crowley fight them.

This quest should land you at level 4. Make sure to pay a visit to your class trainer to check for new abilities.

Brothers in Arms
Crowley agrees to help Greymane in the fight against the Worgen.

Quest Giver: Lord Darius Crowley
Location: Roof of Stoneward Prison (Gilneas City)
Recommended Level: 3-5
Quest Objectives: Talk to King Greymane at the Military District
Rewards: 4 Copper/ 25 Experience

Go back down the prison stairs, out to the Military District, and find King Greymane.

The Rebel Lord's Arsenal
Time to bring in the heavy artillery...

Quest Giver: King Greymane
Location: Military District (Gilneas City)
Recommended Level: 4-6
Quest Objectives: Talk to Josiah Avery to requisition the Rebel artillery.

Follow the yellow question mark to find a sparkling cellar door. Open it and go inside. Find Josiah Avery in the corner. When you complete the quest he attacks you and bites you! Lorna Crowley shows up and shoots him.

From the Shadows
Use Lorna's Mastiff to detect the Worgen Lurkers

Quest Giver: Lorna Crowley
Location: Rebel Ammunition Cellar (Military District)
Recommended Level: 4-6
Quest Objectives: Defeat 6 Bloodfang Lurkers
Rewards: 75 copper, 360 experience, Choice of Mastiff Trainer's Wand (Wand/Arcane Damage), Alarmbringer's Mace (Mace/Two Handed), Houndmaster's Crossbow (Crossbow)

Go outside and use Mastiff to find Bloodfang Lurkers. Kill 6 of them. Once you are done, return to the Rebel Cellar and talk to Lorna again.

Message to Greymane
Lorna sends you to deliver a message to King Greymane.

Quest Giver: Lorna Crowley
Location: Rebel Ammunition Cellar (Military District)
Recommended Level: 4-6
Quest Objectives: Speak with King Greymane in the Military District
Rewards: 90 Experience

Head back out and talk to King Greymane.

Save Krennan Aranas
One of the most brilliant Alchemist of the world is trapped on the other side of the prison. Help save him.

Quest Giver: King Genn Greymane
Location: Military District (Gilneas City)
Recommended Level: 4-6
Quest Objectives: Rescue Krennan Aranas
Rewards: 35 copper, 180 experience

The king lends you his horse for this rescue mission. Ride horse and find Krennan who is hanging from a tree. Use vehicle ability to rescue him, and return to talk to Lord Godfrey. This will show a short cinematic of the Cannon firing.

Time to Regroup
You must fall back and Greymane Court.

Quest Giver: Lord Godfrey
Location: Military District
Recommended Level: 4-6
Quest Objectives: Talk to King Greymane at his court in Gilneas City
Rewards: 7 copper, 35 experience.

The court is in the Southwest guide of Gilneas City. Locate the King and talk to him

Sacrifices
Time to round up some Worgen...

Quest Giver: Lord Darius Crowley
Location: Greymane Court (Gilneas City)
Recommended Level: 4-6
Quest Objectives: Ride with Lord Crowley and round up 30 Bloodfang Stalkers
Rewards: 75 copper, 340 experience

Ride the horse and throw torches at the Worgen to round them up. If you were not able to round up enough Worgen, remount your horse at the Cathedral and go for another round. After you've rounded 30 Worgen, talk to Tobias Mismantle at the Cathedral steps.

By Blood and Ash
Take control of the Cannons

Quest Giver: Tobias Mistmantle
Location: Cathedral Quarter (Gilneas City)
Recommended Level: 4-6
Quest Objectives: Use the cannon to kill 80 Bloodfang Stalkers
Rewards: 1 silver, 450 experience, Item choice: Steadfast Boots (Feet/Leather/23 armor), Cannoneer's Leggings (Legs/Mail/47 armor)

Man the cannon and use its ability to fire at Worgen. You can aim it up and down, and also turn it right or left. Talk to Tobias Mismantle again once you have slain 80 Worgen.

Never Surrender, Sometimes Retreat
Ammunition is running low...

Quest Giver: Tobias Mistmantle
Location: Cathedral Quarter (Gilneas City)
Recommended Level: 4-6
Quest Objectives: Talk to Lord Crowley inside the Light's Dawn Cathedral.
Rewards: 50 copper, 230 experience

Head inside the Cathedral and talk to Crowley.

You should be at level 5 at this point (or close to leveling)

Last Stand
One last stand...

Quest Giver: Lord Darius Crowley
Location: Light's Dawn Cathedral
Recommended Level: 5-7
Quest Objectives: Kill 8 Frenzied Stalkers
Rewards: 3 silver, 675 experience.

This is it, the last stand...  kill the 8 Worgen and speak to Crowley. This will trigger a cinematic. You have become a Worgen yourself! Lord Godfrey traps you and you find yourself in Duskhaven, with your hands tied. Krennan (The Alchemist) and King Greymane are trying to prepare a cure for the curse.