Original sentence: Finally, the terrorists grow impatient and give Stark 24 hours to finish.He ambushes Stark in his house, using a Stark Industries device to temporarily paralyze him.Instead, during his three months of captivity, he and Yinsen begin secretly building a crude suit of armor, powered by a miniature "arc reactor" invented by Stark's father.Meanwhile, Stane returns to Stark Enterprises where SHIELD agents, guided by Potts, break in to arrest him, only to be attacked by the criminal wielding his Iron Monger armor.Potts gives Stark a gift: his first miniature reactor encased in glass and bearing the inscription, "Proof that Tony Stark has a heart".She also learns Stane has recovered the pieces of the original power suit and reverse-engineered his own version, one much larger and more powerful than Stark's, but his engineers are unable to construct a small enough arc reactor to power the suit.Stark survives, but his suit is in pieces
Edited sentence: " Finally, the terrorists grow impatient and give Stark 24 hours to finish.Instead, during his three months of captivity, he and Yinsen begin secretly building a crude suit of armor, powered by a miniature "arc reactor.Later that evening, Stane ambushes Stark in his house, using a Stark Industries device to temporarily paralyze him.Meanwhile, Stane returns to Stark Enterprises where SHIELD agents, guided by Potts, break in to arrest him, only to be attacked by Stane in the now functional Iron Monger armor.Once the new reactor replaces the old one, Potts gives Stark a gift: his first miniature reactor encased in glass and bearing the inscription, "Proof that Tony Stark has a heart".She also learns Stane has recovered the pieces of the original power suit and reverse-engineered his own version, one much larger and more powerful than Stark's.Stane goes to his group of scientists, and is angered when they state that they cannot duplicate the arc reactor technology that Tony created.Stark survives, but his suit is destroyed