Things can’t get much worse for Oliver when he leaves the workhouse – or so you might think. Mrs. Sowerberry doesn’t feed him much better than the workhouse authorities, and Oliver is surrounded by death all the time. Oliver’s "call" into the wider world occurs when Noah mocks his mom, and Oliver punches him in the face and decides to run away. So really, it’s his loyalty to his mother’s memory, and his commitment to life, that launches him into the world.
Bad things happen to Oliver at first – he’s "befriended" by the Artful Dodger, who brings him to Fagin to join the gang. But Oliver doesn’t get it at first. When he realizes that he’s in a den of thieves, he takes off at a run, and is immediately arrested as a pickpocket. But that turns out to be a blessing in disguise – the man who accused him decides to take mercy on him, and eventually takes him in and befriends him.
Oliver gets kidnapped away from Mr. Brownlow, his first friend, and is completely miserable about it. Things get worse for him when Fagin sends him off with Sikes and Toby Crackit to rob a house. Just when he decides to make a break for it so that he can warn the household, he finds himself caught between Sikes on one side, and Giles and his hunting gun on the other, and he’s shot in the arm. Everyone keeps assuming he’s a thief.
Things are looking up for Oliver – the Maylies take care of him after he was shot, and even shield him from the police, even though he was part of the attempted robbery of their house. They teach him to read and write, and reunite him with Mr. Brownlow, his first friend. But Monks is still out to get him, and Oliver doesn’t yet know why – it’s up to Nancy, who sacrifices herself to help him, to get the information they need to force a confession from Monks.
Once the mystery surrounding Oliver’s birth is cleared up, he inherits a bit of money – not a ton, but enough so that he’s not destitute. And Mr. Brownlow legally adopts him, because he was the son of his dead best friend. The mystery surrounding Rose’s birth is cleared up, too, and so she marries Harry Maylie. All of the good characters move to a little village in the country, where they all live happily ever after.