Mrs Müllerova (E. Svobodova) informs her tenant Svejk (R. Hrusinsky) about the recent assassination of Archduke Ferdinand. Svejk heads out to the local pub unaware that a secret police agent is also in there spying on people who talk about political subjects. After foolishly talking to the agent Svejk gets arrested for treason but soon after gets released on the account of being deemed officially stupid. Despite suffering from rheumatism Svejk decides to enlist in the army...