Tomas and his friends are happy in their town and school but must face the fact that some of the adults around are preparing to leave GDR and move to West Germany.

Kim Philby is the best British professional spy. The only difference is that, as a leading official in the British secret service, he not only works for the British side, but also as a double agent for the Soviets. He is supported by the diplomats Burgess and McLean.