possibly the best season so far of Atlantis it provides audio commentaries for each episode save one(still haven't figured out why) and none of te commentaries are terribly boring though this can be said of most SGA commentaries I've heard. additionally each of the five discs has a making of of one of the episodes on that disc as well they continue with character profiles started from the first two season disc sets as well as general featurettes about the shows making. This season saw the most money spent on the series so far and trully shows in the production quality. it also includes the longest ever for television CGI sequence in the episode first strike. It also includes the episode "Sunday" on of the most loved and heartfelt episodes in the series.