Tarzan and is bound and left to die by N'gongwe thieves. He escapes with the help of an elephant and a wild dog. Later, he returns with a herd of elephants and drives the N'gongwes from his jungle.; Boy and Dombie spend the night amidst a crocodile migration.; The brothers hurry to Aba-Zulu to raise an army to relieve the siege of Tungelu.