Keiko finally arrives in Iceland, where years of preparation will be put to the test when Keiko gets his first chance to interact with orcas in the wild — something he hasn’t done since he was a calf. It does not go according to plan.  Our newest podcast, “The Preventionist” is out now. Search for it wherever you get your podcasts.To get full access to this and other Serial Productions and New York Times podcasts on Apple Podcasts and Spotify, subscribe at nytimes.com/podcasts.To find out about new shows from Serial Productions, and get a look behind the scenes, sign up for our newsletter at nytimes.com/serialnewsletter.Have a story pitch, a tip, or feedback on our shows? Email us at serialshows@nytimes.com