Here’s Rabbi Rietti’s outline of Chukas. You can purchase the entire outline of the Chumash here.
Parah
# 19 The Parah Adumah – Red Heifer
# 20 Moshe hit the Rock
# 21 The Snakes
# 22 B”Y Encamped Across the Jordan Opposite Jericho
# 19 The Parah Adumah – Red Heifer
* The Parah Adumah – Red Heifer.
* The Ritual Purification of a Tameh Met.
# 20 Moshe Hit the Rock
* Beny Yisrael arrive at Kadesh in Midbar Tzin.
* Miriam Dies
* “No Water!”
* Beney Yisrael complain against Moshe & Aron.
* HaShem instructs Moshe to speak to the rock.
* Moshe speaks with anger
* Moshe hit the rock.
* HaShem decrees Moshe and Aron will not enter Eretz Yisrael.
* Moshe sent messengers to Edom to let Beney Yisrael pass through.
* Edom warns Beney Yisrael not to pass through.
* Aron dies on Hor Hahaar & entire Jewish People cried over Aron’s death.
# 21 The Snakes
* Canaan attack and take a captive
* B”Y swear to dedicate entire spoils if victorious & recapture the captive.
* Complaints about “No water and bread in the desert, just this Munn!”
* HaShem sent snakes to attack Beney Yisrael.
* Moshe makes a copper snake.
* Journeys: Ovot – Eye-Yay Ha’ivrim – Nachal Zered – Aver Arnon
* Shirat Yisrael: Miracle at ‘Aley Bear’ ‘Song of the Well’
* Journeys continue: Matana – Nachliel – Bamot.
* Messengers sent to King Sichon of Emor “Let us pass through your land”
* Emorites refuse entry and attack Beney Yisrael.
* Israel defeats the Emorites.
* Og, King of Bashan goes out to wage war against Beney Yisrael.
* Israel defeat Og and his people.
# 22 B”Y encamped across the Jordan opposite Jericho
