Rookie Of The Year (1993)

Plot
Henry Rowengartner (Nicholas), 12-year-old, has dreams of playing in the major leagues, although he is not very skilled. One day, Henry breaks his arm trying to catch a fly ball (he slips on another ball that is lying on the ground) and has to wrap it in a cast. Once the arm is healed, the doctor removes the cast and discovers Henry's tendons have healed "a little too tight," thus enabling Henry to cock his arm back and fire it forward with incredible force.

A fateful trip to for a  game results in Henry's friends getting a home run ball hit by the visiting team, the. However, when they give it to Henry to throw back onto the field (per Wrigley tradition), his tightly-healed arm throws the ball so hard that it reaches home plate on the fly. Looking for a miracle to save the club, which is suffering slumping attendance, general manager Larry Fisher (Hedaya) begins efforts to get Henry to join the Cubs. Manager Sal Martinella visits Henry at home to scout him, bringing a radar gun, and discovers that Henry now has the ability to regularly pitch at over 100 miles per hour.

For the remainder of the season, Henry has to juggle the culture shock of actually playing in the major leagues—working with one of his heroes, aging pitcher Chet "Rocket" Steadman (Busey) and spending time with his friends. Under it all, his mother, Mary (Amy Morton), tries to keep him grounded while resisting attempts by Fisher and her boyfriend, Jack (Altman), to exploit his newfound fame.

Henry's first game is a relief appearance against the, in which he gives up a home run to the Mets' feared slugger Heddo (Tom Milanovich), an arrogant player who taunts him while at the plate and rounding the bases. Despite wanting to quit after the game, he then shows marked improvement under the tutoring of Steadman, and records a second consecutive save against the capped off with his first MLB strikeout.

Continuing to impress leading into and during a road game against the, Henry bats for the first time, and his extremely small stature (and subsequent extremely small strike zone) frustrates the Dodger pitcher to the point where he walks on four straight pitches. He subsequently scores a run, followed by an adult player who scores behind him (they are limited by Henry's speed, as baseball rules dictate that a trailing runner cannot overtake another runner in front or they will be called out.)

During the course of the season, relationships begin to get strained, as Henry gets into a fight with his friends who have grown increasingly jealous of his star status, and Mary breaks up with Jack over a supposed endorsement deal that was actually a free-agent contract unknowingly signed by Henry to join the the next season. Eventually, Henry resolves the conflict with his friends, and when he asks team owner Bob Carson (Bracken) about the contract with the Yankees, Carson explains that he never authorized such a deal, and that he wants to retain Henry's services for the remainder of the season. At this point, Henry tells Carson that he will retire at the end of the season. Carson is at first disappointed but respects Henry's decision and wishes him the best of luck and then proceeds to demote Fisher to Hot Dog Salesman after finding out that it was Fisher who tried to set up the deal.

On the last day of the season, presumably the deciding game for the Central Division seat, the Cubs face the Mets once again at Wrigley Field, with Steadman starting. At first, Steadman finds "the Rocket" as he pitches well, but then by the 6th inning, feels pain in his arm each time he throws, eventually allowing the Mets to load the bases. However, he makes one final play, and despite damaging his arm, managed to tag a runner out at home, and subsequently turns the ball over to Henry. As before, Henry easily strikes out the side in the seventh and eighth innings, but in the top of the ninth, he slips on a loose baseball and lands on his side, reversing the effects of his first fall and reducing his arm strength to normal again.

Henry begins to frustrate the Cubs and their fans by refusing to throw pitches that his catcher signals for, and only throws once the catcher stands up, setting up an intentional walk. He then brings in the disappointed Cubs players, explaining why he can no longer throw fastballs, and sends them back to their positions with a plan he came up with. With their cooperation,, who subsequently tags the runner out. Henry then issues an intentional walk to the next batter, with whom he trades insults. When the runner dares him to throw the ball high, Henry starts to do so, but stops as the runner takes off for second. He is tagged out as well, setting up a final showdown with Heddo, who had hit the home run in Henry's debut and gloats as he recalls that moment. Henry has an idea and throws a changeup, which Heddo swings at and misses. Heddo hits the next pitch down the left-field line and into the bleachers, but it is ruled a foul ball; this angers Heddo, who tells Henry that he "has nothing". Henry opens his glove to find not his father's name, but Mary's. He looks to her in the stands and she confirms that she – not his father – was the ballplayer who was his parent. She then signals him to throw a floater, an unusual pitch that rises very high in the air. He does so, and strikes out a shocked Heddo (who, in a humorous reversal of fortunes, breaks down and cries like a baby, pounding the dirt with his fists) to win the pennant for the Cubs.

The next spring, Henry is playing Little League baseball again, with Steadman and Mary as the coaches of his team. After catching a home run ball that ensures victory, while celebrating with his teammates, raises his fist to the camera and reveals he is wearing a Cubs World Series championship ring, signifying he helped the Cubs win the World Series (even though he did not pitch in it).