Let's Begin

Let's Begin is the first episode and the season premiere of the fourth season
 * The truth behind Danny and Ali's breakup, only briefly mentioned in Danny and Clive Season 1, is revealed.
 * This is the second time Johnny Lawrence has been saved by LaRusso Karate.
 * This episode marks the first time Danny and Daniel engage each other in a fight.
 * first name. It also ma rks the first time both Danny and Daniel respectully bow to each other. The only other time they bowed to any degree was when the referee told them to bow at the start of their fight at end of the first film. Danny bows, but Daniel only gives a slight nod.
 * After seeing the errors of his ways, Johnny finally redeems himself by defending Daniel (and regaining his friendship back) from his former Do Karate teammates. Furthermore, he ultimately defects from to LaRusso Karate join Do Karate with some other former Do Karate students/rejects.
 * Danny, Daniel and Johnny finally choose to put their differences aside with the help of Ali and together they both combine their Dojos to become co-senseis over their joint dojos training. While both dojos still exist outside of the merge, they train together to prepare for the tournament against Do Karate
 * The episode’s title is a reference to the date of Danny's first All Valley Karate Tournament in 2017