Opposites Attract is an episode of the ALVINNN!!! and The Chipmunks series.
Alvin and Simon are magnetized and become inseparable after an invention of Simon's accidentally gets knocked over.
In their bedroom, Simon's working on a breakthrough invention while Alvin is dancing, and accidentally knocks over Simon's invention. Simon flies off the handle and yells at Alvin. An annoyed Dave comes in to deal with the situation. He scolds the two for their constant quarreling the last few days, demands them to stop as well as for Simon to shut down his "dangerous" experiment, much to Simon's dismay. No sooner had Dave left the room, Simon lashes out at Alvin, and the pair of them start squabbling with one another, leading them to accidentally knock the invention onto the ground, not only breaking it but also magnetizing the brothers. After the realization of being stuck to each other, Simon finds he can't fix the machine because he's missing an important part. Desperate to keep the accident a secret, they refuse to tell Theodore or Dave and pretend to be getting along. At school, they must sit at the same desk, much to Miss Smith's annoyance. Alvin explains to Miss Smith that Simon got into big trouble with some bad guys, so he needs Alvin's protection. Simon reluctantly agrees, shocking Miss Smith. The two do their best to keep up with their usual activities only for them to end up getting into a squabble. The following day Simon decides to call the university science department for advice. Two men wait for them in the bushes, but Miss Smith scares them away thinking they are the ones Simon's in trouble with. At Simon's insistence, they again try to help Simon by climbing up to his bedroom window only for Miss Smith to catch and chase them off once more. Simon tries to explain the situation to the scientists but to no avail. Thankfully, Alvin finds the missing part to Simon's invention in his bed, and after fixing it, Simon manages to demagnetize them. Before bed, Simon thanks Alvin for helping him.
- A sneak peek clip was uploaded to Nick.com.