| Issue | #21 |
| Published | January 1997 |
| Cover Price | 1.75 |
| Pages | 36 |
| Editing | Paul Kupperberg, Jason Hernandez-Rosenblatt (asst) |
| Characters | Impulse, Cosmic Boy, Spark, Brainiac 5, Gates, Saturn Girl |
| Genre | superhero |
| Pencils | Humberto Ramos (s) |
| Inks | Wayne Faucher (s) |
| Characters | F: Impulse, S: Max Mercury, G: Cosmic Boy, Spark, Brainiac 5, Gates, Saturn Girl |
| Synopsis | Impulse tries to help the Legionnaires stranded in the 20th century return to the future |
| Genre | superhero |
| Script | Mark Waid |
| Pencils | Craig Rousseau |
| Inks | Wayne Faucher |
| Colors | Tom McCraw |
| Letters | Chris Eliopoulos |
| Notes | The sequence in which Impulse meets the Legionnaires is based on the first Legion story in Adventure #247 |