Nothing really sexy here.
There is a bit of creepy violence, as the bad guy alien has a dragon-type form that eats children (off-screen). That might be unpleasant for younger kids.
Why did the Doctor leave Sarah Jane on Earth all those years ago?
Do you think the Doctor was right to leave Sarah Jane?
How could he have explained himself to her so she would understand?
How is the Doctor different from Jesus regarding the amount of time each gives to their friends?