| Issue | #43 |
| Published | February 1987 |
| Cover Price | 0.75 USD; 0.95 CAD |
| Pages | 36 |
| Editing | Joanne Spaldo (Assistant Editor); Carl Potts (Editor); Jim Shooter (Editor-in-Chief) |
| Characters | Vindicator [Heather Hudson]; Puck; Aurora; Northstar; Sentinels |
| Genre | superhero |
| Pencils | Dave Ross |
| Inks | Dave Ross |
| Letters | Typeset |
| Characters | FEATURE: Alpha Flight--Vindicator [Heather Hudson]; Aurora; Northstar; Puck; Box [Roger Bochs]; Madison Jeffries; Purple Girl; VILLAINS: Mesmero; Sentinels; CAMEO: Black King [Sebastian Shaw] |
| Synopsis | Mesmero escapes from custody and flees into Canada and Interdefense sends the new Mark VI Sentinels to bring him back; Things go wrong and Alpha Flight has to battle Sentinels who are attacking Mesmero in the middle of Expo '86. |
| Genre | superhero |
| Script | Bill Mantlo |
| Pencils | Dave Ross |
| Inks | Whilce Portacio |
| Colors | Bob Sharen |
| Letters | Ken Bruzenak |