Its starts with Chandler and Joey spotting 'Phoebe' in some restaurant as a waitress and trying to talk to her, but she somehow seems to be behaving very odd (even for Phoebe's Standards). They find out that she is Ursula,Phoebe's twin. Phoebe hates her and actually has solid grounds for feeling like that.
Unfortunately, Joey falls for her and they go out. Phoebe knowing her twin too well, tries to dissuade him for dating her, but feels she cannot interfere. Joey, on the other hand falls in love with Ursula and in fact fails to come to Phoebe's birthday, celebrating Ursula's instead. Ross has doubts whether he will be a good father even after assurance from Chandler that he is the most caring person in North America. Marcel is cranky and does something with the remote and the audio on the television get set to Spanish. Rachel tries to remove the lightings put during Christmas which she forgot to and ends up slipping from the balcony and getting injured. Monica and Rachel go to the hospital and meet the future ER Doctors (Clooney and Wyle), and invite them to their place while pretending to be each other (due to Rachel's not so surprising lack of medical insurance).Monica and Rachel hilariously point out each other's flaws and Monica ends up telling a really nasty secret to Rachel's father.
Ursula dumps Joey (without his knowledge) and Phoebe talks to Ursula to come out clear with him. Ursula then comes and talks sweetly with Joey and makes him understand that they cannot date anymore, and then they kiss. After a few seconds, Joey realizes something is wrong and finds out that it is Phoebe impersonating Ursula to soften the blow, building a strong foundation for their friendship throughout the ten seasons. Marcel swallows the scrabble tiles and chokes, Ross springs up and takes him to hospital and Marcel is okay, with the tiles removed and Chandler hilariously stating he was trying to spell out Monkey.Chandler then points out in a rather emotional moment that Ross did come through for the monkey and thats was very 'dad', and Marcel wakes up and holds Ross's finger making him realize that he is capable of being a great father.
Not often are there episodes which blend in emotional moments and comic sequences so brilliantly and this definitely ranks up as one of the best episodes.