Episode 21 - School Reunion

We've all had this nightmare.  You go into school and take an exam that you're not at all prepared for.  And to make things worse, you find that your school has been over run by aliens.  But it's not a nightmare, it's really happening!  Fear not, for the Doctor, Rose, Mickey, Sarah Jane Smith and K-9 are on the case!  This week we're talking about School Reunion and the return of fan favorite companion Sarah Jane Smith.