Tap the objects falling at you until you can proceed. If you get hit 3 times, you'll have to start over.
Turn the metal bars to finish the connection. You will also pick up a grey bar and a white bar which you will add to the missing parts. Once you complete the fence, tap the lock. Start turning it clockwise until a number lights up, then switch directions. Keep on finding the numbers and switching directions when you hit one until it unlocks. Drag it down to remove it.
Select only women and children. All the men have facial hair (including the short ones with facial hair) Basically just tap the people that have NO facial hair.
Help lower the lifeboats by turning the lever and pulley clockwise. Watch both your line and the other line. If the other line starts showing the white marks, slow down. If your line starts showing the white marks, speed up.
Tap the bench repeatedly and try to hold on. Eventually you will go down which is normal.
Tap the door.
Figure out the combination (changes every time you play the game). Start by putting 1111, then drag the bar to the right. It will tell you if it's completely wrong (red), 1 number off (yellow), or correct (green). Keep raising the numbers until you find each number in the combination. Once they are all green, the door will open.