S3E8: Lisa's Pony

In "Simpsonlar - S3E8: Episode 8," we find Bart and Lisa in a bit of a pickle at the end of their sibling rivalry gone awry. After the siblings' antics get them both in trouble, they are forced to work together to solve the mess they've created. Their collaboration leads to a series of slapstick events that culminate in a chaotic but ultimately successful resolution. Meanwhile, Homer has his own subplot where he tries to fix something around the house — predictably, it doesn’t go as planned. His efforts result in some comical destruction, but he manages to patch things up just enough to keep Marge off his back. The episode wraps up with the family coming together, once again somewhat inadvertently proving that their dysfunction is what keeps them together. As the credits roll, everything is back to its usual Springfield status quo, with Bart and Lisa having learned absolutely nothing from their experience — which is just how they like it.