Richard "Richie" Rich Jr. is "the world's richest boy", living in
Chicago with his
billionaire parents Richard Sr. and Regina. Under the care of his loyal butler
Herbert Cadbury, scientist Professor Keenbean, and his dog Dollar, Richie enjoys a luxurious but lonely life. At his father's reopening of the local United Tool factory, Richie sees union rep Diane Koscinski's daughter Gloria and her friends playing
sandlot ball, and later tries to befriend them. Lawrence Van Dough, the greedy
CFO of Rich Industries, plots with head of security Ferguson to kill the Riches and steal their fortune, believed to be stored in the family's secret vault. As the Riches prepare for a visit to England, Ferguson plants a bomb among their gifts for the Queen's birthday. Cadbury convinces Regina to let Richie stay home instead, and arranges for a day of fun with the sandlot kids, accompanied by Diane. Though initially bribed by Cadbury, the kids decline the money after genuinely having fun with Richie. Flying the plane themselves, Richard and Regina discover the bomb just before it explodes, crashing the plane into the ocean. Stranded on a life raft, Richie's parents are presumed dead, and Van Dough takes control of Rich Industries. He attempts to close the factory, prompting Richie to assume leadership of the company himself, with Cadbury as his legal guardian and business proxy. Determined to seize the Riches's fortune, Van Dough has Cadbury framed for the bomb and arrested, and subsequently petitions successfully to take over as Richie's guardian. He then removes Richie as the company's leader, dismisses the rest of the Rich family servants, and installs his own security team at Rich Manor to keep Richie prisoner. Overhearing Van Dough's plan to have Cadbury killed in jail, Professor Keenbean warns Richie, who sneaks out and rescues Cadbury. They enlist the help of Gloria and Diane, while Van Dough and Ferguson threaten Keenbean into revealing that the family vault requires a
voice-activated code from Richard and Regina. At sea, Richard manages to repair his "Dadlink", a device allowing Richie to track him anywhere in the world. Using Gloria's computer, Richie finds the Dadlink's signal, but Ferguson intercepts the coordinates and captures Richard and Regina. Richie and Gloria rally the sandlot kids to break into Rich Manor with Cadbury and Diane, using Keenbean's inventions against Van Dough's men. Holding Richard and Regina at gunpoint, Van Dough is led to the vault hidden within "
Mount Richmore", their gigantic mountainside family portrait. Inside, he is furious and outraged to discover no money (which is in banks and the stock market), but what the Riches actually value most: treasured family mementos and heirlooms. Richie confronts Van Dough, who shoots him, but the bullets prove harmless thanks to Keenbean's bulletproof spray. Van Dough pursues the Riches down the side of the mountain, until Cadbury disarms Ferguson and the Riches subdue Van Dough and fire him for everything he did to them. Days later, Richie plays baseball with Gloria and his new friends for the United Tool team on Rich Manor's yard, coached by Cadbury, who shares a kiss with Diane. Van Dough and Ferguson serve as the manor's gardeners as part of their
work release, while Richard and Regina are overjoyed that Richie has finally found what money cannot buy: friends. ==Cast==