The city were the worgen characters start is Gilneas.

In the begging, you will play as human, which fght against the invasion of Worgen's armies. Later, you'll be bitten and at the end you will transform into Worgen. Your first quest chain is in the Merchant Square.

Merchant Square
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Lockdown! You are told to find Find Lieutenant Walden in the northwestern end of the Merchant Square to get your battle orders. When you do find him, he will be dead..

SomethingÔÇÖs Amiss With no Lieutenant Walden to give you your orders youÔÇÖll return to Prince Liam in the MerchantÔÇÖs Square with news of WaldenÔÇÖs death.

All Hell Breaks Loose Prince Liam asks you to slay six Rampaging Worgens which wonÔÇÖt be hard to find because they are everywhere around you.

Evacuate The Merchant Square The next quest, Prince Liam asks you to evacuate four civilian homes. Simply go the area marked on your map and click on the door to the homes. On a couple of doors there will be a worgen pop out after you open the door. Nevermind, they can be slained easy.

Salvage The Supplies You have to salvage four Supply Crates. They are light brown boxes lying throughout the Merchant Square. Gather four of them to complete this quest.

Royal Orders The last quest of the first chain. You are ordered to go to the southern part of the city which basically is the Military Quarter. You will recieve further orders by Gwen Armstead over there.

Military District
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SomeoneÔÇÖs Looking For You YouÔÇÖll find your class trainer in the Military District. Speak to him for training and some experience. Your class trainer will have a quest for you which will be an ability training quest. Once you use the ability on a worgen, you'll complete the quest. This quest is optional.

Safety In Numbers Speak to King Genn Greymane in the military district.

Old Divisions Enter the Stoneward Prison and speak with Captain Broderick.

The Prison Rooftop Next go upstairs to the terrace and speak with Lord Darius. The Worgens wont catch you, but if you accidently forgot to accept the quest or something all of them will attack you.

By The Skin Of His Teeth YouÔÇÖll need to hold back the Worgens at the top the City Prison for two minutes.

While YouÔÇÖre At It Find and kill five Bloodfang Worgens. They are running around on the streets and will be easy to find.

Brothers In Arms Speak to the King in the Military Quarter.

The Rebel LordÔÇÖs Arsenal You are required to find and speak to Josiah Avery inside the Military District. Follow the arrow on your map to arrive at his house. When you arive at his house, behind you there will be a storm cellar where he will hiding. After you complete the quest, he'll transform into worgen and automaticaly will start to attack you. That's the moment when you'll be biten. There will be no cinematic. Fastly move out from the storm cellar and start running until he stop attack you.

From The Shadows You must kill six Bloodfang Lurkers. For this quest you will be given the use of a mastiff pet. It will be very useful to you, just click on itÔÇÖs ability and the mastiff will charge the nearest Lurker even if itÔÇÖs in stealth. To summon him look at your backpack.

Message To Greymane Speak with King Genn Greymane inside the Military District.

Save Krennan Aranas You will be given the KingÔÇÖs horse to go rescue Krennan Aranas. Krennan will be hiding in a tree right in the middle of the battle. Ride the horse under the tree and hit ÔÇ£1″ to grab and rescue him.

Time To Regroup You cannot hold out anymore and so you must fall back to Gremane Court to the west. When you reach there you must speak with King Genn Greymane.

Cathedral Quarter
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By Blood And Ash Simply put just get on one of the cannons and start firing. Slay a 80 Bloodfang Stalkers which are all around you to complete the quest.

Never Surrender, Sometimes Retreat Speak to Lord Darius Crowley inside the LightÔÇÖs Dawn Cathedral.

Last Stand Kill five Frenzied Stalkers inside the cathedral.

And finally completing that quest, a cinematic will start, after this, you'll wake up att a village, in your Worgen form in chains. A couple of peoples around you will have a quick chat, after this you'll start playing again. On that moment you recieve all racial abilities:

Aberration Reduces duration of Curses by 15%.
Darkflight Increases movement speed by 70% for 10 seconds.
Flayer Skinning skill increased by 15 and allows you to skin faster.
Viciousness Increases critical strike chance by 1%.
Both Forms - Change your Human and Worgen forms.

At this point youÔÇÖll finally be outside of the city. There are many quest hubs located all over the Gilneas map. WeÔÇÖll start with Duskhaven.
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Guide by Naasty. Forgive me if ther are grammar mistakes or something of that kind, I'm not American. Excuse me if there is wrong amount of how much worgens you must slain, it;s just a lot of typing, and my head is messed up.