You can follow the path, and by the stream there are some plants you can destroy to reveal a grapple hook pad for more studs. Cross the stream and you will find some purple crates and some other things. Destroy them, and you can build a tractor. You can then go down to the stream, and drive the tractor up the stream to find the Third Canister on a waterfall.

If you want to have more fun with the tractor, take it to the carrot patch nearby, then watch as carrots sprout. Destroy them for some quick coins.

You will soon come to two gates. Blast the thing in the middle, and you can get a Threepio door. After Threepio opens two gates for the price of one, there will be two ways to go, but all leading to the same area.

Go on and go to the right, and you will see a place to build a ramp. Build it and leave it there for now.

Wicket needs to take the gate on the left, and go through the vent. He will need to pull the lever on top, and cage will fall. He can then jump down and assemble the grapple point needed, and his friends can get to another level. Of course, he needs to go through the vent and stand on a button.

With all four characters standing on buttons on the left side, they will combine with the droids standing on buttons on the right. The gates will open up to a new area.

There won’t be much you can do here unless you’re on Free Play, so keep moving forward.

You will then come to a point where you can keep shooting stormtroopers, and then come to a catapult. Get in and keep firing until the gate is broken.

Stormtroopers and an AT-ST will come out looking for you. Go ahead and take out all the stromtroopers and shoot out the AT-ST until you can take it over. From here, all heck breaks loose as you storm the front of the bunker. I recommend getting as much studs as you can, and the area will soon be secure.

Get in the AT-ST and get in the tree platform that is to the left of the main building. Get on the button there, and Han or Chewie will pull the lever, releasing a box. Build the contents of this box into a grapple spot, then go into a tree. Use the other grapple spot, and you will be on the roof of the bunker.