Wide Is the Gate is the fourth novel in Upton Sinclair's Lanny Budd series.

[1] In this novel Lanny Budd's marriage to Irma breaks down after he imposes on her to help smuggle a revolutionary named Trudy out of Germany.

Her husband Ludi had been arrested and vanished into the Gestapo prison system.

Meanwhile, Lanny gets interested in Spain, and is in Barcelona for the Socialist People's Olympiad, in competition to the Berlin games.

The son of Lanny's English friend Rick enlists in the Republican cause.