 The Doctor is a eccentric alien scientist from the planet Gallifrey, planet of the Time Lords, a race of supreme beings who have discovered the secrets of time travel and they never interfere with the affairs of other planets and they only observe and gather knowledge. The Doctor decides to leave Gallifrey because he is bored and he decides to go and explore the universe on-board a space/time machine "The TARDIS" which is in the shape of a police box from the 1950 s. Like all Time Lords, The Doctor can "Regenerate" (Change his appearance and personality when his body is worn out and he is mortally wounded). During the many years of The Doctor s travels through time and space, he is joined by various companions: His granddaughter Susan, School Teachers Ian and Barbara, crash survivor Vicki, space pilot Steven, Trojan handmaiden Katarina, Space Special Security agent Sara, Cockney girl Dodo, secretary Polly, Cockney sailor Ben, Scottish highlander Jamie, Girl from Victorian times Victoria, Intelligent astropyscist Zoe, Military officer Brigadeer Alistair Gordon Lethbridge Stewart, scientist Liz, U.N.I.T agent Jo, journalist Sarah, Naval medical officer Harry, tribal warrior Leela, Time Lady Romana, mathematical genius Adric, determined Nyssa, Australian flight attendant Tegan, alien exile Turlough, shape-shifting android Kamelion, American student Peri, computer programmer Mel and explosives expert Ace. The Doctor battles the galaxy s most evil beings: The Daleks, mutants into robotic bodies hell bent on exterminating all life in the galaxy, The Cybermen, robotic humanoids from the doomed planet Mondas, Davros, the Dalek s crippled creator and The Master, a time lord gone bad. The Doctor is also scientific advisor to U.N.I.T (United Nations Intelligence Taskforce) commanded by Brigadeer Lethbridge Stewart to combat alien menaces that threatens Earth. Travelling with The Doctor through time and space on-board "The TARDIS" and fighting alien menaces and the galaxy s most evil begins is the adventure of a lifetime you ll never forget...