Harry gets transported to a different dimension
Hermione , Ron and Neville and Hannah go back in time
Harry is accidentally sent to an alternate universe
When Hermione , Teddy and James end up back in time accidentally nobody could predict what would happen next
When Hermione, Teddy Lupin and James Sirius Potter fall through time they have no idea of what awaits them.
When Hermione ,Teddy Lupin and James Sirius Potter fall back in time accidentally they have no idea what's in store for them . It starts off a chain of events no one can predict.