Wow, this episode was an amazing way to kick off the second season. All the regular cannon characters are in it. Plus it's packed with action from the very start, when it opens with Jessie being chased through the jungle, to the end when the mummies come alive and kill Dr. Salazar, the man who wanted to bring back the deadly plague to use it as chemical/biological warfare. The plot was well-written and interesting since it played on the history of ancient tribes of South America that went extinct for reasons unknown. Another cool aspect of this episode is that we finally meet Jessie's mother, Estella Valesquez. She is an archaeologist who works on digs mostly in South America. She's a brilliant woman (which shows us where Jessie gets her intelligence from lol) but also rather tough as she is shown saving Race at one point in the episode. Her characterization was great, you can see why Race married her in the first place and you can tell she's Jessie's mother. We also get to see her and Race argue over their parenting methods (or lack thereof) and that is a funny scene. The scene when Jonny tries to save Jessie from the bandits chasing her is cute and their friendly banter is funny. Seeing the way the team reacts to Jessie contracting the deadly disease adds some drama as well as tugs a little on your heart strings, and the ending scene when she is cured is heart warming too, as Bandit licks her face and Jonny and Hadji take Jessie's hand in theirs, relieved that they got the cure to her in time. It was also a sweet J&J moment ^_~
One interesting aspect is the overhaul the animation received for second season along with new voice overs. This is the first episode we get to see these changes. I personally like them better over all (although I know a lot of others disagree). The characters are more attractive and colorfully drawn in the "traditional way" as the second season animation style was coined, in my opinion. Though I never had much of a problem with the original voice actors, I do tend to enjoy listening to the second season cast a little more. Jessie's new outfit is very odd, however, it actually looks okay on her and I think she looks cuter in the pink t-shirt/shorts one piece outfit with purplish/gray spandex underneath than that other baggie shirt and straight leg pants outfit she was dressed in during the first season eps. I tend to enjoy second seasons eps. more than first seasons eps. on average too. The one issue I have is that, supposedly, in second season the kids are all supposed to be one year younger than when the show started. That's not only stupid b/c it's impossible but it's dumb b/c they made them more mature it seemed in the second season. You see Jonny driving a jeep in this ep and he's only supposed to be 13! Absolutely ludicrous! If anything, due to all the things they do, their intellectual level, and the people they hang out with on adventures (they always look so much older!) they should have bumped them up in age not down . . .