![](https://image.tmdb.org/t/p/original/qZVUJT4u5Q3ZZsxfJXYEvVCyQd8.jpg)
![](https://image.tmdb.org/t/p/w342/dlDPN9MMMc1NQpx5EA6HIUFnRVy.jpg)
Episode 4
Having made contact with the tunnel kids, or the Unlisted, Dru and Kal attempt to piece together what they know about the Global Child Initiative and Infinity Group. But they are interrupted by a medical emergency.
![](https://image.tmdb.org/t/p/w300/biYM6FaG78laRQpWBnViNpVWqlV.jpg)
![](https://image.tmdb.org/t/p/w300/96JDy1i9k2BnDLWxC0BIe4WkhJQ.jpg)
Other episodes for this season
![Episode 1](https://image.tmdb.org/t/p/w300/d9JMacuDkXo50nlvXS5vnbw6vYg.jpg)
![Episode 2](https://image.tmdb.org/t/p/w300/nJ0p2nglsMuB5nv0jYImYj0u7z8.jpg)
![Episode 3](https://image.tmdb.org/t/p/w300/x9Tbfj3amieHY2WtMWrf98GDyIU.jpg)
![Episode 4](https://image.tmdb.org/t/p/w300/qZVUJT4u5Q3ZZsxfJXYEvVCyQd8.jpg)
![Episode 5](https://image.tmdb.org/t/p/w300/ceCa23E63AdvDpo6Dn3g3QLIJm6.jpg)
![Episode 6](https://image.tmdb.org/t/p/w300/3Bd2PKHMknqfh4gUNXUVSpqYpuF.jpg)
![Episode 7](https://image.tmdb.org/t/p/w300/6fYQ3rGLzjfseNNbYZWHuH3NyUV.jpg)
![Episode 8](https://image.tmdb.org/t/p/w300/glaZ7RyrlhmAWZLgAsHdxZkLlJM.jpg)
![Episode 9](https://image.tmdb.org/t/p/w300/1kib2n7bk9Qs09bSbeHDpcskMQ4.jpg)
![Episode 10](https://image.tmdb.org/t/p/w300/prH9FjhLM1bqAnc5Y5Lt0CbZVUY.jpg)
![Episode 11](https://image.tmdb.org/t/p/w300/zpfhCvNizECDlYo5T0OZSjU1TK8.jpg)
![Episode 12](https://image.tmdb.org/t/p/w300/uDu46EtRB1LhTQQrOsd7ddttRJm.jpg)
![Episode 13](https://image.tmdb.org/t/p/w300/lk9MsZrjX5VGlGsA2Nzike29OVC.jpg)
![Episode 14](https://image.tmdb.org/t/p/w300/xkiPpXSF2qBTnTgbj6rQ3zoSkw9.jpg)
![Episode 15](https://image.tmdb.org/t/p/w300/bptefa3F6YhPFf9yudHC3wZQ2bX.jpg)