Lagertha, why would you ask Siggy in front of Horik "What's wrong with Ragnar's son?"? I guess he would find out soon enough.
Liked the Bjorn/Rollo fight training (and when they train in general). Not just because it was, ah, fun to watch, but also I like to see what they do to earn their battlefield prowess.
I loved that the Big Three play-acted the group dynamics between themselves that had been real just earlier to dupe Ecbert's son.