Ep 3. Puffless

In season 27 episode 3 of The Simpsons titled "Puffless," Marge's sister Selma decides to quit smoking for the first time in her life after learning of the dangers of secondhand smoke. Matters are made complicated when Selma's daughter, Ling, comes to stay with the Simpsons and discovers a forgotten stash of cigarettes in her aunt's possession.

Meanwhile, Homer decides to start his own rehab center for smokers, but quickly gets in over his head with the number of patients and their various vices. As Selma struggles with her addiction, Ling and Maggie form an unlikely bond over their mutual disobedience and love of blowing bubbles.

As the episode progresses, Selma's commitment to quitting is tested when she faces a difficult decision that could send her back to her old habits. Meanwhile, Marge and Homer's parenting skills are put to the test as they try to keep up with their mischievous daughters.

Overall, "Puffless" showcases the classic Simpsons humor while also delving into the serious issue of smoking and its impact on families. The episode provides a heartwarming message about the power of love and support in overcoming addiction, while also showcasing the importance of being mindful of the effects of smoking on those around us.