Season four, episode six
In a lovely little episode, Lord John Grey (David Berry) and William (Oliver Finnegan) pay a visit to Fraser's Ridge. When Lord John falls ill, Jamie takes William hunting to keep him from getting sick, which gives Claire and John some time to have a good chat about their mutual feelings for Jamie. Balfe and Berry are excellent together, the tension thick in the air as they acknowledge how alike they are in some ways and grudgingly respect one another . . . while also kinda, sorta hating each other's guts.