This is a very interesting series. I first saw some episodes five years ago, but recently after joining Netflix, I've watched a slew of newer episodes. The episodes have a lot of things in common with each other; nevertheless, each one has unique and interesting things as well. Each individual character is interesting in their own way. Furthermore, each story has its own interesting twists and turns. In a few episodes, I was skeptical of some story lines and details, but overall it's a great series. The production is very good, too.
This series should discourage people from trying to smuggle drugs overseas. Most of the individuals got caught up in the trade because they were young, naive, and just careless -- and, of course, the lure of lots of easy money. So, in addition to being entertaining, the series provides a public service to those who are considering thinking about drug smuggling. The series made me despise the higher level drug dealers who unashamedly and callously use amateurs to make them money. In many cases, these higher level scumbags purposely set up the amateurs to get caught.
Even though most of the episodes involve drug smuggling, some of them do not. In fact, one of my favorite episodes is about a guy named Glenn Hegstad, who has nothing to do with drugs, but is kidnapped by Colombian guerrillas. Anyway, I hope National Geographic produces more seasons of Locked Up Abroad.