Plaintiff leased a commercial property from defendant. The lease gave plaintiff an option to buy the property at its fair market value. Plaintiff exercised the option but the parties disagreed about the fair market value. After much litigation, the trial court set the price and ordered the parties to perform, but before they could do so, the Department of Transportation commenced proceedings to condemn the property, which made it impossible for defendant to deliver clear title as the lease required. Held, the trial court did not abuse its discretion in exercising its equitable powers to excuse defendant from that condition which could not be fulfilled due to events that were not the fault of either party. When a judgment governs future events, the court inherently retains jurisdiction to modify the judgment to account for unforeseen circumstances that arise after entry of judgment. It was reasonable to impose on Plaintiff the burden of the condemnation action since it had remained in possession of the property during the long period of litigation.