Joselito lives with his grandmother in a fishing village. His father went to America long ago to make a fortune. One day, the boy decides to travel there to meet him. He takes courage and embarks on a fragile boat and miraculously is saved at sea by a vessel that leads him to Mexico where he meets Tom Thumb, a little newsboy who lives many adventures and helps him in the search.
Joselito
as Joselito Jiménez
Cesáreo Quezadas 'Pulgarcito'
as Pulgarcito
Enrique Rambal
as José Jiménez
Óscar Ortiz de Pinedo
as Director del periódico
Anita Blanch
as Abuela de Joselito
Nora Veryán
as Mamá de Ricardito
Arturo Castro
as 'Chencho' - Conductor del tren
Florencio Castelló
as Pescador
Manuel Capetillo
as Torero
