Something was said about Bates going to a different prison, or section of the prison he was in. All his letters had been held so he got them. Same with Anna. A whole packet arrived, the head housekeeper (Mrs. Norris) brought them to her.
Sybyl arrived on her own, but Tommy wants to return to Ireland, despite being told he would be jailed immediately the second he set foot on Irish soil. He wants their baby born in Dublin, she is trying to tell him they must stay in Downton.His family gave him what for because of leaving her on her own and also for what he did there.
Mathew has found all sorts of things wrong in the books, the estate b eing mismanaged, but is bring brushed off about it. He hesitates to come right out and say so, as the family will be upset, so goes to cousin (Maggie Smith) who tells him, too bad, but you have to tell.
Carson wants to go back to being a butler, Mary convinced him to hire the "good looking" footman, and that slimy guy is trying to make himself more important than he is.
The little boy was given up to the grandparents, for his own good, by the mother.