Fabian Nicieza kicks off his run with a bang! Tragedy strikes the Thunderbolts as a ruthless killer targets the team. But who - and why?! Meanwhile, Citizen V is unmasked at last! Moonstone learns far too much about the source of her power! And is the team ready for…Mach-2? As the Thunderbolts join forces with the Avengers to face Count Nefaria, old friends return, sacrifices are made and secrets are revealed! But will the T-Bolts finally earn their redemption - or go their separate ways? And what schemes is Baron Zemo concocting in the shadows? Featuring Graviton, the V-Battalion and the Thunderbolts of Counter-Earth! Collecting THUNDERBOLTS (1997) #34-63 and ANNUAL 2000, AVENGERS (1998) #31-34 and ANNUAL 2000, THUNDERBOLTS: LIFE SENTENCES, THUNDERBOLTS: FROM THE MARVEL VAULT, CITIZEN V AND THE V-BATTALION #1-3 and CITIZEN V AND THE V-BATTALION: THE EVERLASTING #1-4. Rated T+