the second season of the `` Doctor who '' revival bring with it a new doctor -lrb- David Tennant -rrb- , a return companion -lrb- Billie Piper -rrb- , old friend , new enemy and a couple of old one as well . this dvd set cover all of season two and include the Children in Need special which cover event immediately follow the ninth doctor 's regeneration into the tenth . key story in this second season include `` the Girl in the fireplace , '' the quirky `` Love and Monsters , '' and the wonderfully excessive season finale , `` Army of Ghosts\/Doomsday . '' tennant slide into the role of the doctor seamlessly and appear to really be enjoy himself as he portray he childhood idol . while Eccleston 's doctor be fun , he have a very dark side lurk just beneath the surface . the dark side still live in Tennant , but he humorous and , quite frankly , cocky attitude suppress it for most of the episode in this season . I also see part of Peter Davison and Tom Baker 's portrayal of the doctor present in Tennant 's performance . Tennant 's Doctor have a very appealing demeanor and it be easy to get lose in he vision of the Timelord . Billie Piper reprise she role as Rose , the headstrong , curious companion of the doctor . as expect , hint of a romance be drop throughout the season , and take a humorous turn with the return of Sarah Jane Smith -lrb- the excellent Elisabeth Sladen -rrb- in `` School Reunion . '' Mickey , Jackie Tyler and Rose 's father , Peter , also return and take on bigger role this time around . Old enemy revisit include the always reliable Daleks and a revisioning of the Cybermen . although these new Cybermen be interesting , I miss the old version of the Doctor 's gold-resistant enemy . Cassandra , a new enemy in the new series , also make a return in a interesting story that touch on medical ethic . New enemy include include a extra-terrestrial werewolf in `` Tooth and Claw '' and maybe even the Devil himself in `` the Satan pit . '' in `` the Girl in the fireplace , '' we be introduce to some sinisterly silent clockwork android . `` fear she '' give we a non-enemy in a truly touching story about a child who miss its family . overall , the new enemy be good , especially the werewolf in a legitimately suspenseful tale . special feature include in this set include video diary from Tennant and Piper , as well as run commentary on each episode . once again , we get to look a bit deeper into the production of the show in the `` Doctor who Confidential '' segment . highlight include the `` School Reunion '' Confidential which catch old fan up with Sladen and K-9 , and the `` Girl in the fireplace '' confidential that include a look at the read through of the story . overall , this season of `` Doctor who '' be a excellent addition to the wonderful catalogue of the Doctor 's many adventure . while Peter Davison will always be my favorite , David Tennant 's Doctor will struggle for second place with Patrick Troughton 's doctor until the end of time . if you be not familiar with the old series , have no worry . this set can be watch with no previous knowledge of the original . it might be helpful to watch season one in order to pick up on a few thing but that , too , be not necessary . if you be a fan of intelligent , quirky and sometimes hilarious science fiction , the second season of `` Doctor who '' be just what you need . I highly recommend this set .