Well they have met the Doctor, they have been brought together to fight the aliens that enter through the walls of time and space.
In the second episode they are still less like a team and more a disparate band of teenagers. Ram is moping due to the violent death of his girlfriend and the loss of his leg although the Doctor gave him some kind of an advanced prosthetic leg.
Of course maybe Ram should had got used to his new leg before starting football training because his coach is certainly not happy with his sudden lack of form. Your girlfriend being killed by aliens is not a good enough excuse for him.
The Coach with the Dragon Tattoo (great title) focuses on the school's stern sports coach who has a moving tattoo of a dragon on his back that he talks to. Who is in control, the coach or the dragon?
Ram sees the school cleaner being killed by what looks like a moving dragon. Doubtful this will improve his football form.
At the moment Ram and Tanya get along and he tells Tanya what he thinks he saw. Tanya inform the rest of the gang and they investigate but they have to talk to the school's headmaster when the creature suddenly goes loose.
Miss Quill was rather sidelined here as she had the mysterious school inspector to deal with which really did not seemed to be too connected with the main plot.
The resolution was maybe a bit too much of the Moffat era 'love will save the day.' This might had been fine with The Sarah Jane Adventures but not to a series that seems more connected with Torchwood. Then again there could be a conceptual problem of how many times do you have teenagers from a London school blasting aliens to kingdom come.