4×4:
Violence engulfs Nassau; Silver demands answers from Billy; Eleanor comes to Max’s aid; Bonny and Rackham endure hell.
4×5: Silver takes Flint’s life in his hands; Billy drives a wedge; Eleanor risks everything; Rogers makes a stunning appeal.
4×6:
Eleanor brokers the peace, while Rackham learns the hard way. Flint breaks a promise and Bonny loses control.
4×7:
Max cleans up after a massacre. News from the outside world changes
everything for Flint and Silver, while Eleanor risks her life for the
sake of her future.
4×8-10: no summary released.
[x]
So, apparently the 4×6 and 4×7 summaries are from season 2. Just FYI.