Thunderbolts (2006) #173

• It Had To Happen — Thunderbolts V. Thunderbolts! • Years Ago, In The Wake Of The World’s Battle With Onslaught, The Thunderbolts Were Formed To Protect A Planet Devoid Of Heroes — But They Were Villains In Disguise! • Now, The ‘Bolts Of The Modern Day Come Crashing Into Their Earliest Days — And Will Make A Decision That May Destroy The Marvel U — Or Save It! Parts 1 & 2 Of 3