D4: Dark Dreams Don't Die

Deborah gives five extra cases, all in episode one. Each case she gives has a set time limit, you must finish the case before the time expires so you can receive credit for the case.

Before pushing the emergency door, you must do two cases for her (check the windows, and then check the floors).

Later on, after the Zapatero stunt scene, push Cheney then move a cart in the back of a plane away from the window. Be sure to move some suitcases blocking the aisle too. Talk to Deborah for the last three cases (windows again, metallic object, and then toilets).

According to DrCanadianNinja, the toilet case must the done in a specific order. First, check the restroom across from the one you dived into when you initially started the episode. Investigate the toilet, sink, and flush button. After that’s done, check the restroom across from the one you’re currently in. Then go down to the end of business class and observe the door there.