"That guy’s got swag," said the officer, looking down at the jolly man camped by a billabong under the shade of the coolabah tree
Okay, fair warning - this is explained in the books and it will most likely come into the show, but if you can’t wait/want to know anyway, read on~
As we’ve seen in this ep, Colum suffers from Toulouse-Lautrec syndrome. Because of this he isn’t fully capable of performing all the duties expected of a Scottish laird, and so Dougal is the clan’s war cheiftan - he rides around, visits tenants, steals cattle from other clans, u no the usual Highland hobbies. People in books often say ‘Colum is the mind and Dougal is the body’ - this has caused a bit of a rift/power struggle between the brothers that is the cause of some of the leadership tension we saw in this ep.
Toulouse-Lautrec syndrome has many symptoms, one of which is infertility. But Colum still needs an heir to be chief when he dies, so he, his wife Leticia and Dougal come up with the grand plan of having Dougal get Leticia pregnant, then pretending the child, Hamish, is Colum’s so he can be heir to the clan. So Claire, drunk off her face, mistakenly (correctly) thinks Dougal is Hamish’s father, resulting in the awkward (HILARIOUS) silence we saw.
The kicker in all this is that in 1743, Colum’s condition is barely understood - but Claire, being a nurse from the 1940’s, knows what Toulouse-Lautrec looks like, knows that Colum is infertile, and that he can’t possibly be Hamish’s father. And Colum knows she knows. This means Claire knows the secret that could tear the clan apart, and makes her even more dangerous than they originally thought she was. AND THE PLOT THICKENS~