Characters: Iron Man (Mark 6), Hulk
After the Exploratory Laboratory mission you will be moved to the New York City area. For the first time you will have an opportunity to go around the area freely. You can fulfill some quests, collect new vehicles, unlock new characters or just explore the whole city.
Nevertheless, the main goal remains the same - you must go to the Raft Ferry Port. The right way will be shown by: phantom LEGO character, passage created from the blue studs, purple trace (showed on the minimap) and a blue arrow pointing the proper course. With such help it is hardly possible to get lost.
Remember that using Iron Man's flying ability you can move across the city very fast - Hulk is much slower.
Go to the Raft Ferry Port and destroy a silver container using Iron Man's rockets. Then talk to the captain - you will hear that you need a ticket to sail a ferry.
Move back and fly to the opened storage on the left. Arrange silver bricks and build a ticket machine from them. Pick up the ticket and return to the captain. Sail to the other bank of the bay and disembark your team at the gangway.
Being on the Raft, approach to the entrance and use Hulk's extraordinary strength to yank the green handles. Then shoot Iron Man's rockets at the silver plate to open the entrance.