This is a pretty typical episode of Flipper (see other reviews for synopsis). I don't know why the IMDb ratings are so consistently in the 5-6 range. No, this isn't Citizen Kane, but come on, it's better than most of the current drivel on TV now..
... however... There are two things new to the series that are notable in this episode:
1 - A new character is introduced here; Swedish oceanographer Ulla Norstrand, who will be in 12 episodes. Will the romantic sparks fly?
2 - This episode is the first to have a new version of the theme song. This is one of those "old guys trying to write a 'hip' song". You know, syncopated-Sinatra-style singing (sung by Frankie Randall), mid-sixties-kinda electric guitar strumming, light horns. It kind of reminds me of the "I Dream of Jeannie" song. Pretty cheesy in my humble, and very biased, opinion. The opening song is longer due to additional lyrics. The closing song has TOTALLY new, and yucky-bad lyrics.
Flipper was never "hip". It was honest, genuine, sweet, and homey. This version of the song bugs me. The original version (all of Season 1) has been part of me since 1964 when I first experienced Flipper as a 6-year-old. This new, cheesy-jazz version of the theme song is in Episode 1-5 of season 2. Beginning with Episode 6, our beloved original version of the theme song returns. Yeah! NOT in every episode of season 2, thankfully.