BetoisalonelymanwhoworksasRangeroftheisolatedPeninsulaValdes'NationalPark(Chubut，Argentina).Loverofthenatureandanimals，thepeaceofhisdayswatchingorcas，sealsandsealionsintheseaendsafterthearrivalofLola，aSpanishmotherwhotravelstherefromMadridwithhisautistic11yearsoldsonTristánlookingforBetoafterbothwatchhiminadocumentaryaboutwhales.Desperate，LolaaskshelpBetoinordertomakeatherapyforTristán，hopingthathisisolationcausedbytheautismcanbeovercome.Reluctantatthebeginning，BetoagreestohelpTristán，sailingbythecostinaboattomeetorcas(defyingtherulesthatpreventtouchingthemandswimmingthem)，theonlyonethatcausesemotionalresponsesinTristán.Asdaysgoby，Tristánstartsslowlytoexpressemotions，inthesamewaythatBeto'sbosstriestofirehiminthebeliefthatorcasareadangerouskillerswhales，LolarealizesaboutafamiliartroubleinSpainandthattheyLolaand...