The Doctor managed to finally return Ryan and his friends home to Sheffield, only half an hour after they left, and before the Doctor could leave on her own, she and Ryan visited Yaz's flat for tea. Discovering a mysteriously quiet nearby flat that was infested with cobwebs, the arachnophobic Ryan discovered that giant spiders had begun attacking humans around Sheffield. Eventually, the source of the spiders was traced to the new hotel built by Jack Robertson that Yaz's mother, Najia Khan, was working at. As Ryan was forced to capture one of the smaller spiders, it was revealed that the hotel was built on the site of a former coal mine that was pumped up with toxic waste, causing the local spiders to mutate and grow much larger than normal. Ryan received a letter from his father asking to reconnect with him, but he did not approve and did not have enough time to process it before stumbling upon a large van-sized spider in the hotel's ballroom. Coming up with a plan, Ryan connected the entertainment system in Robertson's panic room to a grime music station and used the vibrations to lure the smallest ones in and trap them. However, Robertson shot the largest mother spider despite the Doctor's protests not to.
