Bart Allen is a speedster from the year 2056, in this time period the world is in ruins. He builds a time machine with an ally named Neutron, wearing Belle Reve clothes and collar, in the ruins of Mount Justice and he went to the past knowing that it was a one way ticket. In the present he helps Flash and Kid Flash battle an unknown villain who is Bart's ally from the future. After being defeated Neutron starts to self destruct so Flash tries to carry him to the desert to minimize the damage but is tripped by Impulse. The two are saved by Kid Flash and Jay Garrick who take them out of the explosion range. Kid Flash is angry at Impulse until Flash reveals that he saved his life, as the fluctuation of the explosion increased and he would have died before he could get away after dropping Neutron off in the desert. Impulse uses a blue orb given to him by Neutron of the future to cure Neutron. He then pretends like he didn't know his time machine broke during the journey and stays in Central City with Jay Garrick.


  • Because he is from a future where the Earth is conquered by the Reach, Bart's speech often makes use of Reach-related words and phrases, such as "crash the mode", "feeling the mode", etc.
  • There are several differences between Impulse in Young Justice and in the comics, such as that in the comics, Impulse originated from a thousand years in the future and he was brought to the past since his metabolism rate threatened his life. Another difference is his personality, he was originally depicted as dim witted, and extremely hyperactive. In the show, his impulsive behaviour is an act, as he tells Nathanial before he leaves that he has to get into character.
  • Jason Marsden, the voice for Impulse, originally voiced the character as Kid Flash in an episode of MAD where the heroes were complaining about Superman, Wonderwoman, and Batman.



Flash Logo 01
DC Rebirth Logo
Flash Family member

This character is or was an incarnation of or an ally of The Flash, and a member of the Flash Family of speedsters. This template will automatically categorize articles that include it into the "Flash Family members" category.

Young Justice Vol 2 20 Textless
DC Rebirth Logo

Young Justice member
This character is or was a member of Young Justice, a team of younger super-heroes and side-kicks who fight crime together separately from their adult counterparts, in any of its various incarnations. This template will categorize articles that include it into the "Young Justice members" category.