Summarize Bilbos rescue of the dwarves?

Answer 1

Bilbo stays invisible for weeks listening to conversations of the Wood-Elves. The king's first man<-? and a guard test some wine in the basement of the Wood-Elf compound. They fall asleep and Bilbo steals the guard's keys. Bilbo unlocks the cells of the dwarves and he puts them in empty tubs that the Wood-Elves were about to throw out through their river disposal system, (I can't quite remember what it was called), and the elves who throw out the tubs threw out the dwarves without even looking in them. Bilbo had one problem though, he wasn't in a tub, so he had to grab on to a barrel and float into the lake where the dwarves and Bilbo are accepted and fed and housed.

Answer 2

Which time? Bilbo helps out the Dwarves on several occasions, most notably in rescuing them from the Spiders in Mirkwood and from the elven dungeons. He was also key in giving Gandalf time to escape which allowed him to rescue them from the goblins.