I wasn't sure how the show would transition from Kyle coming back to the Tragers, but it surprised me. Although the bulk of what made the episode great had more to do with the experiment XX. It kicked off strong with contrasting the main difference between Kyle and XX; that by nature Kyle is a curious, sensitive, and kind being, while XX is curious, but more hostile. Her killing that random camper did a great job of conveying that. Although I liked how later on they showed her to be a naive being more than an evil one at the park, to balance out that she isn't all that bad of a person.
The episode also did a good job of introducing the new character Emily Hollander. Sure she spent most of the episode over the phone investigating her mission, but one line really did a great job of getting us to know her better. "I know what you did in Simple but strikingly effective.
Overall there was a surprising amount of set ups and pay offs. One of them was with Kyle's new abilities that can shatter glass. You just know that that will play a pivotal role later on. Although to stack up onto that is also the abundant of lies that Kyle has to keep in order to be part of the Trager family. He knew the circumstances he needed to bear in order to come back to them, yet he took them. And like all good shows, the obstacles he needs to face head on aren't any less consequential. If the Trager's find out the truth he'll be in red water.
Another is Kyle's relationships with the characters. He's learning to become more humanized. One of them was how he bared the burden of keeping Declan in the dark, despite knowing how much it was eating him up inside all of these months. But the more impressive character development scene was with Josh; when Kyle told him he learned a new trick, and drank the water instead, it really showed that he developed a sense of humor, one of the most human things a person could possess. On top of that it was a funny scene.
The final two sequences of the show ended with a pay off and set up. The pay off being Josh's insistence to prove that Kyle is an out of this world being. He's distraught to find out that Kyle is more normal than he wished he was. And then when Kyle predicts that the phone was going to go off, Josh replies with "Kyle being It was a nice sentimental moment. And the set up being the new agent Hollander now tasked to find Kyle.
This is a great start to season 2.