'Adventure Five' (6 Parts) by Don Houghton [1,3,4] and Anthony Read [2,5,6]

a.k.a. 'Dr. McDee Must Die'
'The Dinner Party'
'The Party'
'The Virus'

Lord Arthur Mullrine organises a party to celebrate the fiftieth anniversary since his business partnership began with his late partner, Doctor George McDee. However, during the party, time rolls back fifty years, and guests who were not alive at that time reappear, only to be systematically murdered. The late Doctor McDee arrives at the party, and the recently-arrived Sapphire and Steel realise that the events of the night of his death are beginning to recreate themselves. It transpires that McDee had invented a lethal virus that could destroy all humanity. However, before this could happen he was shot by a jealous lover. Time has occupied the body of his lover, and is now attempting to arrange events to ensure that McDee survives, in order to accidentally unleash the virus. Sapphire and Steel ensure that McDee’s lover murders him as history has recorded, and both his body and the virus are consumed in a fire.


Joanna Lumley (Sapphire), David McCallum (Steel), Patience Collier (Emma Mullrine), Davy Kaye (Lord Mullrine), Nan Munro (Felicity McDee), Jeffry Wickham (Felix Harborough), Jeremy Child (Howard McDee), Jennie / Jenny Stoller (Annabelle Harborough), Peter Laird (Greville), Stephen Macdonald (George McDee), Christopher Bramwell (Tony Purnell), Patricia Shakesby (Anne Shaw), Debbie Farrington (Veronica Blamey), Valentine Dyall (Radio Commentator)

Directed by Shaun O'Riordan

TX:
Part 1 - Tuesday, 11th August 1981 @ 7.00pm
Part 2 - Wednesday, 12th August 1981 @ 7.00pm
Part 3 - Tuesday, 18th August 1981 @ 7.00pm
Part 4 - Wednesday, 19th August 1981 @ 7.00pm
Part 5 - Tuesday, 25th August 1981 @ 7.00pm
Part 6 - Wednesday, 26th August 1981 @ 7.00pm

Notes:
*Featuring Sapphire and Steel