A dark-haired man is smiling while in a storage unit while four other men stand outside the unit watching.
Four men are making sure that the man in the storage unit stays put.
The men can be outside of the storage unit for other reasons, not necessarily to make sure the man stays put.
Just because men are outside of the storage unit while one man is inside of it doesn't mean that they are making him stay put.
Men can be there without being there making sure that the man stays put.