He was a dedicated fighter with no tolerance for corruption or dishonesty and managed to form his own group of warriors to combat against Separatist forces. Syndulla forged an alliance with Mace Windu that brought liberty to his fellow Twi'leks.
During the start of the Separatist invasion on Ryloth Cham and his freedom fighters helped Jedi Master Ima-Gun Di and Captain Keeli. The Freedom fighter noted they were running out of food, water, and munitions. Di told Dao to ask the Council to send reinforcements, but when Dao reported his plea, his cruiser was demolished.
Cham and his troops along with Di retreated. Captain Keeli reported the right flank collapsed, and they were all stuck together. Cham and his troopers retreated as Di and the remaining troopers defended the Twi'leks. Keeli and Di fought valiantly, but they both died. Luckily, the Toydarian relief supplies were sent and the Twi'leks got food. Later, Tambor's droid army pushed on and fought Syndulla and his troops. Ahsoka, Anakin, Mace Windu, and Obi-Wan Kenobi were sent to aid Ryloth. Cham and his troops could not fight and fled and made a shelter from a crashed Trade Federation carrier.
Liberty on Ryloth
After Anakin and Ahsoka destroyed the blockade and Obi-Wan freed some cities, Mace went to the help of Cham. Mace explained about Cham making an alliance between him and the corrupt Twi'lek senator Orn Free Taa. Cham and Taa both made promises, and Mace fought alongside Cham to free Lessu. They freed the capital, and Mace guarded Tambor. Cham and his soldiers arrested him. After the liberation of Ryloth, Cham and Taa made an alliance to keep Ryloth safe.