![](https://image.tmdb.org/t/p/original/9cfsLUffDZfYey9SON6luUUSDb8.jpg)
![](https://image.tmdb.org/t/p/w342/42cJukwvrC8eZ1mShB5jBE3HLPL.jpg)
Ralphie Strikes a Nerve
The class constructs a giant robot with help from brainy scientist Dr. Sarah Bellum, then takes a look inside Ralphie's nervous system.
![](https://image.tmdb.org/t/p/w300/dfvbteFQiK6e7PPajb6khojI2ko.jpg)
![](https://image.tmdb.org/t/p/w300/iLM5ezJ3h6vEHYrU4DkyZZUxgtT.jpg)
![](https://image.tmdb.org/t/p/w300/oiHscwDbMqk7hncGG08bfhODF28.jpg)
Other episodes for this season
![Frizzle of the Future](https://image.tmdb.org/t/p/w300/1u4BD8Qe6kFVsCVYLAC7cL24zwc.jpg)
![Pigs in the Wind](https://image.tmdb.org/t/p/w300/24Y0yYIqGbtxCsLj5ejzqIrMDEX.jpg)
![In the Swim](https://image.tmdb.org/t/p/w300/wOMmsPtOVrr6UZLWN6qb6tcd7rs.jpg)
![The Battle of Rock Mountain](https://image.tmdb.org/t/p/w300/jt2dOQYxGa5NbXcDPSY7VLyvSkb.jpg)
![The Magnetic Mambo](https://image.tmdb.org/t/p/w300/b7kuxskeL5VLFvtx1uJmu6Oeaq9.jpg)
![Carlos Gets the Sneezes](https://image.tmdb.org/t/p/w300/51d5NIftQZ7XXHbhgJCrwNs4dvS.jpg)
![Hides and Seeks](https://image.tmdb.org/t/p/w300/ayuCZzmmrYs7BlgpnqKulJiUtwK.jpg)
![Three in One](https://image.tmdb.org/t/p/w300/qhmMLrDjYsijF8eujYO6D83E8Mt.jpg)
![Space Mission: Selfie](https://image.tmdb.org/t/p/w300/vBwVjHxg9PfNo1SkRr1m4ZZz3qB.jpg)
![The Tales Glaciers Tell](https://image.tmdb.org/t/p/w300/1vfg80t8soVKHhqDtYzQZS50scq.jpg)
![Ralphie Strikes a Nerve](https://image.tmdb.org/t/p/w300/9cfsLUffDZfYey9SON6luUUSDb8.jpg)
![Monster Power](https://image.tmdb.org/t/p/w300/vo52Jb48jRmsWROW49bq7MKe6I8.jpg)
![DA and the Deep Blue Sea](https://image.tmdb.org/t/p/w300/vok4Q0DkW0n8WhzSOFn6BodUZxh.jpg)
The class constructs a giant robot with help from brainy scientist Dr. Sarah Bellum, then takes a look inside Ralphie's nervous system.