Once you select the episode, you will be in your house.
There will be a knock at the door. That's Jimmy "the" Neck.
Go outside and talk to that guy. After that, have an intimidating conversation.
 The "annoy" (The panel with a picture of a fly) move seems to be the most accurate. So use annoy many times.
After that, Jim has had enough and lets you go. He'll ask you if you could help find the briefcase that he buried. (Jim has the worst memory in the world)
The only thing he remembers is that he went to the Saloon.
When Jimmy was in the Saloon he had the briefcase with him.
But when he stopped by the Pawn Shop, it was gone. (See how horrible his memory is?)
So, the first thing you should do is investigate the Saloon and the Pawn Shop for clues.
In the Pawn Shop, enter the door beside the guy selling stuff. You'll find a pile of sand upstairs.
Then, head to the Saloon. If you talk to Dusty Hogg, he'll tell you that his freezer is broken.
If you want to get your ratings very high, one requirement is that you have to fix the freezer. Unless you don't want to do it.
Head to the desert and talk to this guy on a boat that ran ashore. He'll sell you books.
Buy the mechanical book and use it. Then, head back to the Saloon and fix the freezer. 
The freezer is in a room really close to Dusty. So go in the room and fix it. Talk to him again. He thanks you with a great reward: Nothing!
Now you've completed the hidden want. After that, walk to the west corner of the Saloon. You'll find another pile of sand.
A message will pop up saying that the pile of sand contains a bit of red paint and glass from a headlight. Remember that.
Now, head to Frankie Fusilli's house. It's really close to your house.
Talk to him. He'll say that if you cheer Ara Fusilli up, Mr. Fusilli will tell you something.
Go near the Snake-Eyes Casino. Ara will be close to the building. Make friends with her.
Once you're done chit-chatting with Ara, she'll tell you that she wants to go in the Casino, but Guiseppi (man in black clothes) has been watching her to make sure she doesn't get in the casino because her father, Frankie, won't let her.
Go to the Pawn Shop and buy a paddle ball. Then give the paddle ball to Guiseppi and he will be distracted.
Talk to Ara again. She'll go into the casino. Enter the casino and ask Ara to talk to her father for you.
She'll do just that. Travel back to Frank's house and he'll tell you that Jimmy was burying the briefcase in the desert.
Tell Jimmy that and he'll give you a shovel. Press R to equip the shovel and R again to unequip it.
Now, remember that there were chips of red paint and glass from the pile of sand.
Go to the desert by heading southwest. You'll find many piles of sand.
Look for a car wedged between two trees. The car is red and there's a pile of sand right in front of it.
Now, either Jimmy was running really fast and carelessly that he bumped into the car and lost his memory or he drove the car between those trees and lost memory from brain damage. Anyways, we're kind of going of track.
Next, dig in that pile and you'll find the briefcase.
However, before giving the briefcase to Jimmy, make sure you had enough aspiration conversations.
So, go around town and have aspiration conversations.
Once you've had enough conversations, head to the Strangetown Zoo.
Talk to the zookeeper and he'll ask you to do an errand. You need to bring a drain plug back to someone who works at the nuclear powerplant.
I forgot what her name was but it started with a K. Return it to her and you've completed the errand.
After that, find Jimmy and give him the briefcase. Episode Complete! Ratings are pretty high. Yay!
If I made a mistake, just reply to this thread and I'll fix it as soon as possible.

aquabludolphin18 : Hello! And Yes! A sims walkthrough! I might actually take advantage of this - thank you!

There were plenty of descriptions in this walkthrough and much detail, however some of it was messy and I didn't understand what you were talking about. Other than that there's no problems with the detail. 

I think structure is an error here. You need to break down your work into paragraphs to make it appealing and easy to read.  If you work on this you will gain a lot more readers and they won't lose attention during this.

I would like to thank you for making this review, I hope you are proud with yourself! If you improve on what I have said then you can make a bigger impact on the reader! 

Thank you!

Thanks for writing this! It was very helpful and it had great detail and description in it. Great job!

It appears that I already commented here -.- I read your review twice. Sorry for that. It is really good though and you should keep up the work and work on what I have said.

Barathemos : You should post here twice either as it can be considered spam too. You could have edited your post to put that in. Ughh Tour de Vizzed Spam as usual.

This is a very helpful walkthrough and I am sure many people will find it helpful and it will help them succeed in the game. You have lots of great detail and descriptions of the game which I think were very useful in this walkthrough. The only thing I would change is the way you presented it, you should space it out a little more to make it easier to read instead of all together like this, it makes it a little more difficult to read and understand. But nevertheless, this was a nice, lengthy walkthrough and I think that it will come in to be very useful. Keep up the awesome work and keep writing, I guarantee that this will help many people who play this game!